WinNavigator

Frigate

Norton Commander

WinNC

Dos Navigator

Servant Salamander

Turbo Browser

Winamp, Skins, Plugins

Необходимые Утилиты

Текстовые редакторы

Юмор

File managers and best utilites

Internet Explorer версии не ниже Настройка браузера Google Chrome. Надежные узлы браузера google chrome

Internet Explorer версии не ниже Настройка браузера Google Chrome

Инструкция по регистрации в Системе.

Для регистрации и дальнейшей работы в информационной системе «Интернет-портал «Казахстанское содержание» используйте браузер Google Chrome (рекомендуемый) или Internet Explorer версии не ниже 8.

Настройка браузера Google Chrome.

1. Java. Для функционирования подпсиания электронно-цифровой подписью в браузере Chrome необходимо установить последнюю версию Java, на сайте www.java.com. После установки необходимо проверить работоспособность java-приложения, для этого нужно перейти по ссылке http://java.com/ru/download/installed.jsp (установлено ли на моем компьютере программное обеспечение java).

1.1. Установка Java приложения (в случае если Java установлена, перейдите к пункту 1.2.)

Откройте сайт www.java.com, нажмите кнопку «Загрузить Java бесплатно»:

В открывшемся окне «Загрузить Java для Windows», нажмите на кнопку «Согласиться и начать бесплатную загрузку»:

После сохранения и установки Java необходимо применить настройки браузера Google Chrome. Для этого введите в адресной строке браузера chrome://plugins

В открывшемся разделе «Подключаемые модули» проставьте галочку «Разрешать всегда» напротив модуля Java TM .

В дальнейшем в работе с Системой, в случае возникновения сообщения «Блокировать запуск потенциально небезопасных компонентов? Да\Нет», необходимо нажимать кнопку Don’t или НЕТ.

2. Во избежание проблем с загрузкой рекомендуем установить последнюю версию Adobe Flash Player, по ссылке http://www.adobe.com/support/flashplayer/downloads.html

3. Добавить сайт www.ks.gov.kz в список доверенных узлов интернет следующим образом, выбрать меню «Свойства обозревателя», далее выбрать вкладку «Безопасность», среди иконок в разделе «Выберите зону для настройки ее параметров безопасности» выберите «Надежные узлы», далее нажмите кнопку «Узлы», расположенную ниже:

Появится диалоговое окно для ввода сайта в список доверенных узлов. В текстовом поле наберите адрес сайта сдачи отчетности http://ks.gov.kz (без www), если отмечено поле «Для всех узлов этой зоны требуется проверка серверов (https), нужно снять отметку с этого поля, далее нажмите кнопку добавить, расположенную правее текстового поля

После того как узел добавлен в список доверенных, нажмите на кнопку «Закрыть».

В настройках безопасности своего браузера разрешить выполнение java скриптов на своем компьютере (см. рисунок ниже)

Далее Заказчику и Поставщику необходимо получить в НУЦ сертификаты юридических лиц в установленном порядке - http://pki.gov.kz/

Установка криптопровайдера Tumar не требуется, достаточно иметь на компьютере (в определенной папке) или CD-диске/USB-накопителе сертификата GOST.

На этом этап подготовки компьютера пользователя завершен.

Далее необходимо перейти на страницу регистрации в cистеме Интернет-портал «Казахстанское содержание» (http://ks.gov.kz/Registration.aspx), выбрать либо регистрацию Поставщика товаров, работ и услуг, либо регистрацию отчетного предприятия.

Настройка браузера Internet Explorer.

При использовании браузера Internet Explorer версии не ниже 8.

Как проверить версию Вашего браузера

1.1. Установка Java приложения (в случае если Java установлена, перейдите к пункту 1.2.)

Откройте сайт www.java.com, нажмите кнопку «Загрузить Java бесплатно»:

В открывшемся окне «Загрузить Java для Windows», нажмите на кнопку «Согласиться и начать бесплатную загрузку»:

В открывшемся разделе «Подключаемые модули» проставьте галочку «Разрешать всегда» напротив модуля Java TM .

После того как узел добавлен в список доверенных, нажмите на кнопку «Закрыть».

На этом этап подготовки компьютера пользователя завершен.

Осуществить настройку режима параметров совместимости перейдите на Сервис - Пареметры режима представления совместимости. И добавьте туда new.reestr.nadloc.kz

На этом этап подготовки компьютера пользователя завершен.

РЕГИСТРАЦИЯ

Далее необходимо перейти на страницу регистрации в cистеме «Интернет-портал «Казахстанское содержание» (http://www.ks.gov.kz/Registration.aspx), выбрать либо регистрацию отечественного поставщика товаров, работ и услуг, либо регистрацию отчетного предприятия.

В открывшейся форме заполнить все требуемые поля:

Для поставщиков: В ПОЛЕ «Бизнес-идентификационный номер (файл)» - необходимо прикрепить в системе сканированную копию свидетельства о государственной регистрации. Для Отчетных предприятий:

В ПОЛЕ «Бизнес-идентификационный номер (файл)» - необходимо прикрепить в системе сканированную копию свидетельства о государственной регистрации.

После заполнения всех необходимых полей необходимо принять условия предоставления услуг портала и нажать на кнопку «Отправить»

При этом Система откроет диалоговое окно выбора сертификата для подписи:

Пользователю необходимо выбрать месторасположение сертификата ЭЦП, расположенного на локальном диске либо на съемном носителе, например на флеш диске и нажать на кнопку «Открыть». Файл сертификата имеет расширение pfx (сертификаты GOST):

После выбора сертификата Система предложит указать пароль к этому сертификату в соответствующем модальном диалоговом окне. Необходимо набрать в текстовом поле пароль и нажать на кнопку «ОК».

После чего необходимо нажать на командную кнопку «Подписать:

После нажатия на кнопку «Подписать», Система блокирует все пользовательские элементы управления и проведет проверку валидности сертификата посредством средств информационного взаимодействия с НУЦ. При этом определяются три основных параметра:

Срок выпуска и действия сертификата, просрочен сертификат или нет
Статус сертификата – действительный либо отозванный
Штамп времени от сервиса НУЦ – фактическое время подписи данных.

После того как Система проверит (в автоматическом режиме) и убедится, что сертификат действительный и непросроченный, тогда начнется процесс шифрования данных и обновления базы данных, запишется штамп времени.

После того, как процедура подписывания регистрационной анкеты будет завершена, откроется страница с логином и паролем для входа в систему.

Внимание! В некоторых случаях аплеты Тумара для подписи ЭЦП не загружаются (выходит ошибка «Апплет криптопровайдера не загружен»), обычно это имеет место в следующих случаях:

1. Отсутствие java на компьютере – Зайти на сайт http://java.com, скачать и установить последнюю версию;

2. Система безопасности (антивирус, секьюрити, фаервол, настройки внутренних политик безопасности, прокси-сервер) пользователя блокирует запуск java или блокируются некоторые файлы для загрузки - В этих случаях необходимо обратиться к IT-специалистам (айтишник, системный администратор, программист) в своей компании, чтобы они отключили указанные настройки безопасности и убедились, что файлы типа java applet (jar) и java script (js) разрешены для загрузки внутри корпоративной сети;

3. Java не загрузилась до конца на странице подписи - Не закрывая страницы, которую надо подписать, подождать 1-2 минуты, чтобы все апплеты загрузились и повторить попытку подписи;

4. Необходимо удостовериться, что вверху браузера нет сообщений характера "Требуется разрешение на запуск подключаемого модуля Java", или аналогичных. Разрешить запуск java.

www.kagiz.org

Internet Explorer версии не ниже Настройка браузера Google Chrome

Инструкция по регистрации в Системе.

Настройка браузера Google Chrome.

1.1. Установка Java приложения (в случае если Java установлена, перейдите к пункту 1.2.)

Откройте сайт www.java.com, нажмите кнопку «Загрузить Java бесплатно»:

В открывшемся окне «Загрузить Java для Windows», нажмите на кнопку «Согласиться и начать бесплатную загрузку»:

В открывшемся разделе «Подключаемые модули» проставьте галочку «Разрешать всегда» напротив модуля Java TM .

После того как узел добавлен в список доверенных, нажмите на кнопку «Закрыть».

На этом этап подготовки компьютера пользователя завершен.

Настройка браузера Internet Explorer.

При использовании браузера Internet Explorer версии не ниже 8.

Как проверить версию Вашего браузера

1.1. Установка Java приложения (в случае если Java установлена, перейдите к пункту 1.2.)

Откройте сайт www.java.com, нажмите кнопку «Загрузить Java бесплатно»:

В открывшемся окне «Загрузить Java для Windows», нажмите на кнопку «Согласиться и начать бесплатную загрузку»:

В открывшемся разделе «Подключаемые модули» проставьте галочку «Разрешать всегда» напротив модуля Java TM .

После того как узел добавлен в список доверенных, нажмите на кнопку «Закрыть».

На этом этап подготовки компьютера пользователя завершен.

РЕГИСТРАЦИЯ

В открывшейся форме заполнить все требуемые поля:

При этом Система откроет диалоговое окно выбора сертификата для подписи:

После чего необходимо нажать на командную кнопку «Подписать:

Срок выпуска и действия сертификата, просрочен сертификат или нет
Статус сертификата – действительный либо отозванный
Штамп времени от сервиса НУЦ – фактическое время подписи данных.

1. Отсутствие java на компьютере – Зайти на сайт http://java.com, скачать и установить последнюю версию;

kagiz.org

Google Chrome Privacy Whitepaper

This document describes the features in Chrome that communicate with Google, as well as with third-party services (for example, if you've changed your default search engine). This document also describes the controls available to you regarding how your data is used by Chrome. Here we’re focusing on the desktop version of Chrome; we touch only tangentially on Chrome OS and Chrome for Mobile. This document does not cover features that are still under development, such as features in the beta, dev and canary channel and active field trials, or Android apps on Chrome OS if Play Apps are enabled.

If you have questions about Google Chrome and Privacy that this document doesn’t answer, please contact the privacy team at [email protected]. We’d be happy to hear from you.

Omnibox

Google Chrome uses a combined web address and search bar (we call it the “omnibox”) at the top of the browser window.

As you use the omnibox, your default search engine can suggest addresses and search queries that may be of interest to you. These suggestions make navigation and searching faster and easier, and are turned on by default. They can be turned off by unchecking "Use a prediction service to help complete searches and URLs typed in the address bar or the app launcher search box" in the “Privacy” section of Chrome's settings. They are also disabled in incognito mode.

Omnibox

In order to provide these suggestions, Chrome sends the text you've typed into the omnibox, along with a general categorization (e.g., "URL", "search query", or "unknown"), to your default search engine. Chrome will also send a signal to your default search provider when you focus in the omnibox, telling it to get ready to provide suggestions. Your IP address and certain cookies are also sent to your default search engine with all requests, in order to return the results that are most relevant to you.

If Chrome determines that your typing may contain sensitive information, such as authentication credentials, local file names, or URL data that is normally encrypted, it will not send the typed text.

If Google is your default search engine, when you select one of the omnibox suggestions, Chrome sends your original search query, the suggestion you selected, and the position of the suggestion back to Google. This information helps improve the quality of the suggestion feature, and it's logged and anonymized in the same manner as Google web searches. Logs of these suggestion requests are retained for two weeks, after which 2% of the log data is randomly selected, anonymized, and retained in order to improve the suggestion feature.

If you've chosen to sync your Chrome history, and if Google is your default search engine, the URL of the page you’re viewing is sent to Google in order to provide better, contextually relevant suggestions. URLs are sent only for HTTP pages and HTTPS pages, not other schemes such as file: and ftp:. Additionally, Chrome may present suggestions as soon as you place the cursor in the omnibox, before you start typing. Chrome is in the process of transitioning to a new service to provide these on-focus suggestions. For most users on desktop versions of Chrome, the request and complete set of suggestions are retained on Google servers in order to further improve and personalize the feature. When the URL that triggered the set of suggestions is deleted from your history, the set of suggestions will stop influencing suggestions personalized to you, and will be deleted; otherwise they are retained in your Google account for a year. For a small portion of users on desktop versions of Chrome, and users on mobile versions of Chrome, the logging described in previous paragraphs apply except that URLs are not included in the 2% sampling of log data.

On Android, your location will also be sent to Google via an X-Geo HTTP request header if Google is your default search engine, the Chrome app has the permission to use your geolocation and you haven’t blocked geolocation for www.google.com (or country-specific origins such as www.google.de). Additionally, if your device has network location enabled (High Accuracy or Battery Saving Device Location mode in Android settings), the X-Geo header may also include visible network IDs (WiFi and Cell), used to geocode the request server-side. The X-Geo header will never be sent in Incognito mode. HTTPS will be required to include this header in the request. You can learn more about how to control the Android OS location sharing with apps on this article for Nexus, or find your device here if you do not use a Nexus. How to control location sharing with a site within Chrome is written in this article. See the Geolocation section of this whitepaper for more information on default geolocation permissions.

If you use a non-Google search provider as your default search engine, queries are sent and logged under that provider's privacy policy.

Additionally, when you use the omnibox to search for a single word, Chrome may send this word to your DNS server to see whether it corresponds to a host on your network, and may try to connect to the corresponding host. This gives you the option to navigate to that host instead of searching. For example, if your router goes by the hostname “router”, and you type “router” in the omnibox, you’re given the option to navigate to http://router/, as well as to search for the word “router” with your default search provider. This feature is not controlled by the "Use a prediction service to help complete searches and URLs..." option because it does not involve sending data to your default search engine.

Network predictions

Chrome uses a prediction service to load pages more quickly. The prediction service uses navigation history and local heuristics to predict which resources and pages are likely to be needed next, and it initiates actions such as DNS prefetching, TCP and TLS preconnection, and prefetching of web pages. To turn off network predictions, uncheck “Use a prediction service to load pages more quickly” in the “Privacy” section of Chrome’s settings.

If you have chosen to sync your Chrome history, your history can be used to improve predictions. When synced history is used, the URL of the current page is sent to Google, as well as the URLs of the pages Chrome predicts you'll visit next.

To improve load times, the browser can be asked to prefetch links that you might click next. Chrome supports four types of prefetching:

Chrome prefetching - can be initiated by Chrome itself whenever it detects a search query typed in the omnibox or a likely beginning of a URL you type often
Webpage prefetching - requested by one web page to prefetch another
AMP prefetching - can be requested only by the Google Search App on Android to prefetch several accelerated mobile pages (AMP) articles and display them later in a Chrome Custom Tab
CustomTabs prefetching - any Android app can request to prefetch a URL to speed up displaying it later in a Chrome Custom Tab

Controlling the feature. All prefetching types except webpage prefetching are controlled by Chrome’s prediction service setting. Webpage prefetching is allowed regardless of whether Chrome’s network prediction service feature is enabled.

Handling of cookies. The prefetched site is allowed to set and read its own cookies just as if you had visited it (even if you don’t end up visiting the prefetched page). All types of prefetching are disabled if you disallow third party cookies to prevent cookies from being set from pages that you did not visit.

Javascript execution. For AMP prefetching the page is fully rendered and Javascript is also executed. For the remaining types of prefetching Javascript is not executed.

Google search locale

If Google is set as your default search engine, Chrome will try to determine the most appropriate locale for Google search queries conducted from the omnibox in order to give you relevant search results based on your location. For example, if you were in Germany, your omnibox searches may go through google.de instead of google.com.

In order to do this, Chrome will send a request to google.com each time you start the browser. If you already have any cookies from the google.com domain, this request will also include these cookies, and is logged as any normal HTTPS request to google.com would be (see the description of “server logs” in the privacy key terms for details). If you do not have any cookies from google.com, this request will not create any.

New Tab page

The Chrome New Tab page may display suggestions for websites that you might want to visit.

In order to help you get started, Chrome may suggest content that is popular in your country or region. Chrome uses your IP address to identify your country or region.

Chrome tries to make personalized suggestions that are useful to you. For this, Chrome uses the sites you have visited from your local browsing history. The most popular languages of the sites you visited may also be sent to Google to provide suggestions in languages you prefer to read.

If you are signed into Chrome, suggestions are also based on data stored in your Google account activity. You can control the collection of data in your Google account at Activity controls and manage your account activity at My Activity. For example, if you sync your browsing history and have enabled its use in your Web & App activity, Google may suggest sites that relate to sites you have visited in the past. Chrome measures the quality of suggestions by sending Google information about the sets of suggestions that were displayed, and those that were selected.

For Chrome on Android, in certain countries, Chrome may download the content of the New Tab page suggestions from Google, for use while offline. Chrome sends to Google a cookieless request with the URL for each suggestion, along with Chrome’s user agent string, in order to render the content. You can remove downloaded content by clearing Chrome’s cache data, or by opening the Downloads menu and selecting individual pages to delete. You can disable this feature by disabling “Automatically download pages” in Chrome’s Privacy settings.

For desktop and Android versions of Chrome, when you open a new tab, Chrome loads a New Tab page customized by your default search engine (e.g., google.com) if it’s available. This page is preloaded in the background and refreshed periodically so that it opens quickly. Your IP address and cookies, as well as your current browser theme, are sent to your search engine with each refresh request so that the New Tab page can be correctly displayed. See the Embedded Search API for more details.

The New Tab page content may be designed by your default search provider. Suggested websites are embedded by Chrome into the New Tab page in a way that does not expose them to your default search provider.

This information about the New Tab page may not apply if you've installed an extension that overrides the New Tab page.

Touch to Search

If you've enabled "Touch to Search" on Chrome Mobile you can search for terms by tapping them.

When you tap a word, the word, the surrounding text, and the home country of your device's SIM card are sent to Google to identify recommended search terms (for example, tapping on "Michael" on a site about Michael Jackson might lead to a suggested search for "Michael Jackson"). The tapped word is logged in accordance with standard Google logging policies, and the surrounding text and home country are logged only when the page is already in Google's search index. If you sync your browsing history, the URL of the page is also sent and logged, and is used to improve your query suggestions.

When Google returns a search suggestion, a card "peeks through" at the bottom of the screen, showing the suggested search term. Opening this card is considered a regular search and navigation on Google, so standard logging policies apply.

Long-pressing on a word opens a peeking card with the selected word, except on recent versions of Android Oreo and higher which activates Smart Text Selection instead. No communication with Google occurs until the card is opened, and no surrounding text is sent. Saying “Ok Google” after long-pressing on a word provides the word and its surrounding text as context for the Google Assistant.

Touch to Search is enabled in a limited mode by default: potentially privacy-sensitive data, such as the URL and surrounding text, is not sent for HTTPS pages. Touch to Search can be fully enabled and disabled in the card or in the Chrome privacy settings.

Safe Browsing protection

Google Chrome includes an optional feature called "Safe Browsing" to help protect you against phishing, social engineering, malware, unwanted software, malicious ads, intrusive ads, and abusive websites or extensions. You can find more information at safebrowsing.google.com about how Safe Browsing protects you in Chrome and other Google products. Safe Browsing is designed specifically to protect your privacy and is also used by other popular browsers. This feature is not available on the iOS version of Chrome.

When Safe Browsing is enabled in Chrome, Chrome contacts Google's servers periodically to download the most recent Safe Browsing list of unsafe extensions and sites, including phishing, social engineering, malware, unwanted software, malicious ads, intrusive ads, and abusive websites or extensions. The most recent copy of this list is stored locally on your system. Chrome checks the URL of each site you visit or file you download against this local list. If you navigate to a URL that appears on the list, Chrome sends a partial URL fingerprint (the first 32 bits of a SHA-256 hash of the URL) to Google for verification that the URL is indeed dangerous. Chrome also sends a partial URL fingerprint when a site requests a potentially dangerous permission, so that Google can protect you if the site is malicious. Google cannot determine the actual URL from this information.

In addition to the URL check described above, Chrome also conducts client-side checks. If a website looks suspicious, Chrome sends a subset of likely phishing and social engineering terms found on the page to Google, in order to determine whether the website should be considered malicious. Chrome can also help protect you from phishing if you type one of your previously saved passwords into an uncommon site. In this case Chrome sends the URL and referrers of the page to Google to see if the page might be trying to steal your password.

If you encounter a website that is on Chrome’s Safe Browsing list, you may see a warning like the one shown below. From there, you can choose to opt in to reporting data relevant to security to help improve Safe Browsing and security on the Internet. If you opt in, an incident report will be sent every time you receive a warning or visit a suspicious page. Chrome is currently transitioning this opt-in to change the reporting functionality. If your checkbox reads “Automatically send some system information and page content to Google to help detect dangerous apps and sites” then you are part of the new group of users. This setting differs from the old “report security incidents to Google” in that security reports will also be sent on a very small sample of other sites to help Safe Browsing learn about new threats you may be encountering. This new setting will be unchecked by default even if you opted in to the older setting. The reports are sent to Google over an encrypted channel and can include URLs, headers, and snippets of content from the page and they never include data from browsing you do in Incognito mode. In cases where Chrome discovers unwanted or malicious software on your machine, the reports may also include details about malicious files and registry entries. This data is used only to improve Safe Browsing and to improve security on the Internet. For example, Chrome reports some SSL certificate chains to Google to help improve the accuracy of Chrome’s SSL warnings.

Malware

You can visit our malware warning test page or social engineering warning test page to see the above example in action. For more information about the warning pages, see Manage warnings about unsafe sites. You can find settings for Safe Browsing and the additional reports in the Privacy section of Chrome settings. Please be aware that if you disable the Safe Browsing feature, Chrome will no longer be able to protect you from websites that try to steal your information or install harmful software. We don't recommend turning it off.

If you are a webmaster, developer, or network admin, you can find more relevant information about Safe Browsing on this page.

Safe Browsing also protects you from abusive extensions and malicious software. At start up of Chrome, Safe Browsing scans extensions installed in your browser against the Safe Browsing list. If an extension on the list is found, Chrome will temporarily disable the extension, offer you relevant information and provide an option for you to remove the extension or re-enable it. Chrome also sends the particular extension ID to Safe Browsing. If you attempt to download a file on Chrome’s Safe Browsing list, you'll see a warning like this one:

This file is malicious, and Chrome has blocked it.

To warn you about potentially dangerous files, like the picture shown above, Chrome checks the URL of potentially dangerous file types you download against a list of URLs that have been verified. This list is stored locally on your computer and updated regularly. Chrome does not send information to Google for files you download from URLs in this list, or if the file is signed by a verified publisher. For all other unverified potentially dangerous file downloads, Chrome sends Google the information needed to help determine whether the download is harmful, including some or all of the following: information about the full URL of the site or file download, all related referrers and redirects, code signing certificates, file hashes, and file header information. Chrome may then show a warning like the one pictured above.

Chrome helps protect you against password phishing by checking with Google when you enter your password on an uncommon page. Chrome keeps a local list of popular websites that Safe Browsing found to be safe. If Chrome detects that you have entered your Google account password or one of your passwords stored in Chrome’s password manager on a website that’s not on the list, it sends a request to Safe Browsing to gather the reputation of that website. The verdict received from Safe Browsing is usually cached on your device for 1 week.

If the reused password is your Google account password and the verdict for the website is that it is phishing, Chrome will suggest that you change your Google account password to avoid losing access to your account. Additionally, if you sync your browsing history without a sync passphrase, Chrome sends another request to tell Google that your password was likely phished, to make hijacking of your Google account by an adversary more difficult. The information sent in this request includes the ID of the synced browsing history entry to identify the URL where the phishing attempt happened, and the verdict received from Safe Browsing.

If you've opted into sharing data relevant to security to help detect dangerous apps and sites, Chrome also sends a request to Safe Browsing each time you start to enter a password on a page that isn’t in Chrome’s local list. In addition, the request that Chrome sends to Safe Browsing to determine the reputation of the website on which you reuse your password includes the list of websites for which you saved this password in Chrome’s password manager (but not the password itself).

If Chrome suspects that your settings have been tampered with, Chrome reports the URL of the last downloaded potentially dangerous file, and information about the nature of the possible tampering, to the Safe Browsing service.

For some downloads, Chrome may ask you to opt in to reporting to Google Safe Browsing some data relevant to security, in order to improve the quality of download protection. Once you've opted in, some downloaded files that are suspicious will be sent to Google for investigation each time they are encountered. You can change this opt-in setting at any time in the Chrome settings.

Chrome asks your permission before using certain web features (APIs) that might have associated risks. To improve the safety and utility of Chrome permissions, Chrome may anonymously report the domains on which you grant, reject and revoke permissions or ignore or dismiss permission prompts. This happens only if you are a Safe Browsing user and have activated syncing your browsing history and settings with Google without a custom passphrase.

For all Safe Browsing requests and reports, Google logs the transferred data in its raw form for up to two weeks. Google collects standard log information for Safe Browsing requests, including an IP address and one or more cookies. After at most two weeks, Safe Browsing deletes the raw logs, storing only calculated data in an anonymized form that does not include your IP addresses or cookies. Additionally, Safe Browsing requests won’t be associated with your Google Account. They are, however, tied to the other Safe Browsing requests made from the same device.

Unwanted software protection

The Windows version of Chrome is able to detect and remove certain types of software that violate Google's Unwanted Software Policy. If left in your system, this software may perform unwanted actions, such as changing your Chrome settings without your approval. Chrome periodically scans your device to detect potentially unwanted software. In addition, if you have opted in to automatically report details of possible security incidents to Google, Chrome will report information about unwanted software, including relevant file metadata and system settings linked to the unwanted software found on your computer.

If you perform an unwanted software check on your computer from the Settings page, Chrome reports information about unwanted software and your system. System information includes metadata about programs installed or running on your system that could be associated with harmful software, such as: services and processes, scheduled tasks, system registry values commonly used by malicious software, Windows proxy settings, and software modules loaded into Chrome or the network stack. You can opt out of sharing this data by deselecting the checkbox next to "Report details to Google" before starting the scan.

If unwanted software is detected, Chrome will offer you an option to remove the software by using the Chrome Cleanup Tool. The Chrome Cleanup Tool also reports information about unwanted software and your system to Google, and again you can opt out of sharing this data by deselecting the checkbox next to "Report details to Google" before starting the cleanup.

This data is used for the purpose of improving Google’s ability to detect unwanted software and offer better protection to Chrome users. It is used in accordance with Google’s Privacy Policy and is stored for up to 14 days, after which only aggregated statistics are retained.

Navigation error tips

Google Chrome can show tips to help guide you to the page you were trying to reach in cases where the web address cannot be found, a connection cannot be made, the server returns a very short (under 512 byte) error message, or you've navigated to a parked domain.

Google Chrome will first check the address against a locally-stored list of suspected parked domains. If there is a match, Chrome sends a partial fingerprint (a hash prefix) of the URL to Google for verification that the domain is indeed parked. This uses the same methodology as the Safe Browsing service (see the “Safe Browsing protection” section, above).

In the case of other navigation errors, the URL of the web page you're trying to reach is stripped of all GET parameters, and then sent to Google in order to retrieve navigation tips. This information is logged and anonymized in the same manner as Google web searches. The logs are used to ensure and improve the quality of the feature.

Additionally, to provide you with more informative error messages when a domain name cannot be found, Chrome will investigate the underlying cause by attempting to resolve “google.com” using both Google Public DNS and the default DNS service configured for your system.

In the event that Chrome detects SSL connection timeouts, certificate errors, or other network issues that might be caused by a captive portal (a hotel's WiFi network, for instance), Chrome will make a cookieless request to http://www.gstatic.com/generate_204 and check the response code. If that request is redirected, Chrome will open the redirect target in a new tab on the assumption that it's a login page. Requests to the captive portal detection page are not logged.

You can disable navigation error tips by unchecking the box in the "Privacy" section of Google Chrome's options.

Software updates

Desktop versions of Chrome and the Google Chrome Apps Launcher use Google Update to keep you up to date with the latest and most secure versions of software. In order to provide greater transparency and to make the technology available to other applications, the Google Update technology is open source.

Google Update requests include information necessary for the update process, such as the version of Chrome, its release channel, basic hardware information, and update errors that have been encountered. The update requests also send Google information that helps us understand how many people are using Google Chrome and the Chrome Apps Launcher ⎼ specifically, whether the software was used in the last day, the number of days since the last time it was used, the total number of days it has been installed, and the number of active profiles. Google Update also periodically sends a non-unique four-letter tag that contains information about how you obtained Google Chrome. This tag is not personally identifiable, does not encode any information about when you obtained Google Chrome, and is the same as everyone who obtained Google Chrome the same way.

Because Chrome OS updates the entire OS stack, Google Update on Chrome OS also sends the current Chrome OS version and hardware model information to Google in order to ensure that the correct software updates and hardware manufacturer customizations such as apps, wallpaper, and help articles are delivered. This information is not personally identifiable, and is common to all users of Chrome OS on the same revision of device.

Unlike the desktop versions of Chrome, the delivery and management of updates for mobile versions of Chrome are managed through the app stores for Android and iOS. Mobile versions of Chrome utilize the servers described above for counting active installations.

Chrome extensions and applications that you’ve installed are kept up to date with a similar system used for updating desktop versions of Chrome. These update requests include similar information (such as the application ID, when the application was last used, and how long it’s been installed). We use these requests to determine the aggregate popularity and usage of applications and extensions. If you are using an extension or application restricted to a certain audience, authentication tokens are sent with the update requests for these add-ons. For security reasons, Chrome also occasionally sends a cookieless request to the Chrome Web Store, in order to verify that installed extensions and applications that claim to be from the store are genuine.

In order to keep updates as small as possible, Google Chrome is internally split into a variety of components, each of which can be updated independently. Each component is uniquely identified via an ID that is shared among all Google Chrome installations (e.g., “fmeadaodfnidclnjhlkdgjkolmhmfofk”). An update request for a component contains this ID, the hash of the previous download (called a "fingerprint"), and the component’s version. Because every installation has the same ID, and downloads of the same component have the same fingerprint, none of this information is personally identifiable.

If you install web apps on an Android device, a Google server is responsible for creating a native Android package that can be verified for authenticity by Chrome. When Chrome is updated or notices that the web app's manifest has changed, Chrome asks the server for a new version of the Android package in a cookieless request. If the information needed to create the native Android package cannot be acquired by the server (e.g., because the information is behind a corporate firewall), Chrome sends it to Google and an Android package is created that is unique to you. It contains a unique and random identifier that is not tied to your identity.

Chrome may also download and run a binary executable (e.g., as part of the software update or to improve Safe Browsing protection). These executables are cryptographically signed and verified before execution. Chrome may download further static resources like dictionaries on demand to reduce the size of the installer.

On Windows and OS X versions of Chrome, the recovery component tries to repair Google Update when it’s broken. After the relevant binary is executed, Google Update uploads statistics on the actions that were performed. These statistics contain no personally identifiable information.

Network time

On desktop platforms, Chrome uses network time to verify SSL certificates, which are valid only for a specified time. At random intervals or when Chrome encounters an expired SSL certificate, Chrome may send requests to Google to obtain the time from a trusted source. These requests are more frequent if Chrome believes the system clock is inaccurate. These requests contain no cookies and are not logged on the server.

Counting installations

In order to measure the success rate of Google Chrome downloads and installations of the Windows version of Google Chrome, a randomly-generated token is included with Google Chrome's installer. This token is sent to Google during the installation process to confirm the success of that particular installation. A new token is generated for every install. It is not associated with any personal information, and is deleted once Google Chrome runs and checks for updates the first time.

For Chrome to know how many active installations it has, the mobile version of Chrome sends a ping to Google with a salted hash of a device identifier on an ongoing basis. The desktop version of Chrome does not send any stable identifier to count active installations. Instead an anonymous message to Google with a timestamp of the last ping is used to infer number of active installations.

Measuring effectiveness of a promotion

Chrome utilizes two measurements to understand how effective a promotional campaign has been: how many Chrome installations are acquired through a promotional campaign, and how much Chrome usage and traffic to Google is driven by a campaign.

To measure installations or reactivations of Chrome through a campaign, Chrome will send a token or an identifier unique to your device to Google at the first launch of Chrome, as well as the first search using Google. On desktop versions of Chrome, a token unique to your device is generated. The same token will be sent if Chrome is later reinstalled at first launch and at first use of the Omnibox after reinstallation or reactivation. Rather than storing the token on the computer, it is generated when necessary by using built-in system information that is scrambled in an irreversible manner. On iOS, Chrome uses the IDFA for counting installations acquired by a campaign, and it can be reset in iOS settings.

To measure searches and Chrome usage driven by a particular campaign, Chrome inserts a promotional tag, not unique to you or your device, in the searches you perform on Google. This non-unique tag contains information about how Chrome was obtained, the week when Chrome was installed, and the week when the first search was performed. For desktop versions of Chrome, Chrome generates a promotional tag, if the promotional installation token described in the previous paragraph indicates that Chrome has been installed or reactivated by a campaign on a device which has not been associated with any campaign yet. For Chrome on Mobile, a promotional tag is always sent regardless of the source of installations.

The promotional tag is generated using a software library called "RLZ" and looks similar to “1T4ADBR_enUS236US239”. The RLZ library was fully open-sourced in June 2010. For more information, please see the In the Open, for RLZ post on the Chromium blog and the article “How To Read An RLZ String”. On Android, this promotional tag can also be a readable string like "android-hms-tmobile-us" instead of an RLZ string, and is not unique to either you or your device.

This non-unique promotional tag is included when performing searches via Google (the tag appears as a parameter beginning with "rlz=" when triggered from the Omnibox, or as an “x-rlz-string” HTTP header). We use this information to measure the searches and Chrome usage driven by a particular promotion.

Tokens

If usage statistics and crash reports are enabled, the RLZ string is sent along with the report. This allows us to improve Chrome based on variations that are limited to specific geographic regions.

For the desktop version of Chrome, you can opt-out of sending this data to Google by uninstalling Chrome, and installing a version downloaded directly from www.google.com/chrome. To opt-out of sending the RLZ string in Chrome OS, press Ctrl + Alt + T to open the crosh shell, type rlz disable followed by the enter key, and then reboot your device.

Usage statistics and crash reports

Chrome has a feature to automatically send usage statistics and crash reports to Google in order to help improve Chrome’s feature set and stability.

Crash reports

Usage statistics contain information such as system information, preferences, user interface feature usage, responsiveness, and memory usage. This feature is enabled by default for Chrome installations of version 54 or later. You can enable or disable the feature in the "Privacy" section of Google Chrome's settings. These statistics do not include any personal information. Crash reports contain system information gathered at the time of the crash, and may contain web page URLs or personal information depending on what was happening at the time of the crash.

When this feature is enabled, Google Chrome stores a randomly generated unique token on your device, which is sent to Google along with your usage statistics and crash reports. The token does not contain any personal information and is used to de-duplicate reports and maintain accuracy in statistics. This token is deleted when the feature is disabled and a new token is regenerated when the feature is enabled again.

Along with usage statistics and crash reports, Chrome also reports anonymous, randomized data that is constructed in a manner which is not linked to the unique token, and which ensures that no information can be inferred about any particular user's activity. This data collection mechanism is summarized on the Google research blog, and full technical details have been published in a technical report and presented at the 2014 ACM Computer and Communications Security conference.

Chrome will also anonymously report to Google if requests to websites operated by Google fail or succeed in order to detect and fix problems quickly.

If you are also syncing your browsing history without a sync passphrase, Chrome usage statistics include information about the web pages you visit and your usage of them. The information will also include the URLs and statistics related to downloaded files. If you sync extensions, these statistics will also include information about the extensions that have been installed from Chrome Web Store. The URLs and statistics are sent along with a unique device identifier that can be reset by turning off history Sync or usage statistics and crash reports. The usage statistics are not tied to your Google account. Google only stores usage statistics associated with published extensions, and URLs that are known by Google’s web crawlers. We use this information to improve our products and services, for example, by identifying web pages which load slowly; this gives us insight into how to best improve overall Chrome performance. We also make some statistics available externally, through efforts like the Chrome User Experience Report. Externally published reports are conducted in highly aggregated manner to not reveal individual user's identity.

Google Surveys in Chrome

When you have "send usage statistics" enabled, you may be randomly selected to participate in surveys to evaluate consumer satisfaction with Chrome features. If you are selected, Chrome on Android requests a survey from Google for you. If a survey is available, Chrome then asks you to answer the survey and submit the responses to Google.

The survey also records basic metrics about your actions, such as time spent looking at the survey and elements that the user clicked. These metrics are sent to Google even if you do not fully complete the survey.

To ensure that surveys are spread evenly across users and not repeatedly served to a single user, the feature stores a randomly generated unique token on the device. This token is used solely for the survey requests and does not contain any personal information. If you disable sending usage statistics, the token will be cleared.

Suggestions for spelling errors

Desktop versions of Chrome can provide smarter spell-checking by sending text you type into the browser to Google's servers, allowing you to apply the same spell-checking technology that’s used by Google products like Docs. If this feature is enabled, Chrome sends the entire contents of text fields as you type in them to Google, along with the browser’s default language. Google returns a list of suggested spellings that are displayed in the context menu. Cookies are not sent along with these requests. Requests are logged temporarily and anonymously for debugging and quality improvement purposes.

This feature is disabled by default; to turn it on, click “Ask Google for suggestions” in the context menu that appears when you right-click on a misspelled word. You can also turn this feature on or off with the “Use a web service to help resolve spelling errors” checkbox in the Privacy section of Chrome settings. When the feature is turned off, spelling suggestions are generated locally without sending data to Google's servers.

Mobile versions of Chrome rely on the operating system to provide spell-checking.

Translate

Google Chrome’s built-in translation feature helps you read more of the Web, regardless of the language of the web page. The feature is enabled by default.

Translate

Translation can be disabled at any time in Chrome’s settings.

Language detection is done entirely using a client-side library, and does not involve any Google servers. For translation, the contents of a web page are only sent to Google if you explicitly decide to translate it by clicking “Translate” on the bar, or if you’ve previously chosen “Always translate” for a given language via the translate bar Options menu.

If you do choose to translate a web page, the text of that page is sent to Google Translate for translation. Your cookies are not sent along with that request and the request is sent over SSL. This communication with Google's translation service is covered by the Google privacy policy.

If you’ve chosen to sync your Chrome history, statistics about the languages of pages you visit and about your interactions with the translation feature will be sent to Google to improve Chrome’s understanding of the languages you speak and when Chrome should offer to translate text for you.

Sign In to Chrome

Google Chrome provides the option to sign in with your Google Account and synchronize your Chrome data across multiple devices. Synced data can include bookmarks, saved passwords, open tabs, browsing history, extensions and other settings. In Advanced sync settings, you can choose which types of data to synchronize with this device. By default, all syncable data types are enabled.

You can sign in to Chrome or disconnect your Google Account from Chrome at any time using the “Sign in” section of Chrome’s settings. However, on mobile versions of Chrome, you are only able to sign in to Chrome with accounts that have already been added to the mobile device. Signing in to Chrome or Chrome OS will also automatically sign you in with the associated Google Account to all Google web services (e.g. google.com). This happens on both desktop and mobile versions of Chrome.

Signing into Chrome on mobile also enables “account consistency,” which keeps you signed in to Google web services with all Google Accounts that have been added to the device. Chrome signals to Google web services that account consistency is enabled by attaching an X-Chrome-Connected header on Android or a CHROME_CONNECTED cookie on iOS to any HTTPS requests to Google-owned domains. This allows those Google web services to update their UI accordingly. If you are using a managed device, your system admin may disable the sign in feature or require that data be deleted when you disconnect your account.

Google uses your personal synchronized data to provide you a consistent browsing experience across your devices, and to customize features in Chrome. You can manage your synchronized history by going to chrome://history in your Chrome browser. If “Include history from Chrome and other apps in your Web & App Activity” is checked on the Web & App Activity controls page, Google also uses your synchronized browsing data to provide personalized Google products and services to you. You can change your preference any time, and manage individual activities associated with your Google account.

The paragraph above describes the use of your personal browsing history. Google also uses aggregated and anonymized synchronized browsing data to improve other Google products and services. For example, we use this information to improve Google Search by helping to detect mobile friendly pages, pages which have stopped serving content, and downloads of malware.

If you would like to use Google's cloud to store and sync your Chrome data without allowing any personalized and aggregated use by Google as described in the previous paragraphs, you can choose to encrypt all of your synced data with a sync passphrase. If you choose this option, it’s important to note that Google won’t have access to the sync passphrase you set; we won’t be able to help you recover data if you forget the passphrase. Regardless of how you choose to encrypt your data, all data is always sent over secure SSL connections to Google’s servers.

If you're signed in to Chrome and are syncing passwords and/or other types of login credentials without a sync passphrase, these credentials are stored in your Google Account. Chrome may help you sign in with credentials you've saved in Android apps on websites that are associated with the respective apps. Likewise, credentials you've saved for websites can be used to help you sign in to related Android apps. You can view the credentials you've saved in Chrome and Android by visiting passwords.google.com in any browser. If you've saved credentials for Android applications, Chrome periodically sends a cookieless request to Google to get an updated list of websites that are associated with those applications. To stop websites and Android apps from automatically signing in using credentials you previously saved, you can turn off Auto Sign-In on passwords.google.com or in Chrome settings under "Manage passwords". For more details see this article.

If you sync your browsing history without a Sync passphrase and your browser’s usage statistics and crash reports setting is also enabled, your usage statistics and crash reports will include statistics about the pages you visit. You can read more in the Usage statistics and crash reports section of this Whitepaper.

All data synchronized through Google’s servers is subject to Google’s Privacy Policy. To get an overview of the Chrome data stored for your Google Account, go to the Chrome section of Google Dashboard. That page also allows you to stop synchronization completely and delete all sync data from Google’s servers.

Autofill

Google Chrome has a form autofill feature that helps you fill out forms on the web more quickly. Autofill is enabled by default, but it can be turned off at any time in Chrome’s settings.

If Autofill is enabled and you encounter a web page containing a form, Chrome sends some information about that form to Google. This information includes a hash of the web page’s hostname, as well as form identifiers (such as field names), the basic structure of the form, and Chrome’s guess at each field’s data type (for example, “field X looks like a phone number, and field Y looks like a country”). This information helps Chrome match up your locally stored Autofill data with the contents of the form, and it also helps to improve the quality of form-filling over time.

If Autofill is enabled when you submit a form, Chrome sends the data types you actually used in the form. This information helps Chrome improve its guesses over time. The actual text you typed into the form is not sent to Google.

You can manage your Autofill entries via Chrome’s settings, and you can edit or delete saved information at any time. Chrome will never store credit card information without explicit confirmation. If you scan your credit card using a phone camera, the recognition is performed locally.

Chrome may help you sign in to websites with credentials you've saved to Chrome's password manager or Google Smart Lock by autofilling sign-in forms, by offering you an account picker, or by automatically signing you in. You can manage and delete your saved credentials in the “Forms and passwords” section of Chrome’s settings.

Also, if you choose, you can bring your Autofill data with you to all your Chrome-enabled devices by syncing it as part of your browser settings (see the “Sign In to Chrome” section of this document). If you choose to sync Autofill information, field values are sent as described in “Sign In to Chrome”; otherwise, field values are not sent.

Payments

If you are signed in, Chrome will offer to save your credit cards and related billing addresses to Google Payments and on your local device. Integration with Google Payments can be disabled via Chrome’s Advanced sync settings. If you choose not to sync credit cards with Google Payments, credit cards will be saved locally but will not be synced. If you are signed in and integration with Google Payments is enabled, Chrome may offer to autofill forms with credit card data stored in your Google Payments account. The cards from your Google Payments account not already saved locally are masked until you provide the correct CVV code. When providing your CVV code for verification, you can choose to store the credit card locally as part of your Chrome Autofill data. If you choose not to store the card locally, you will be prompted for your CVV code each time you use the card. If you use a card from Google Payments, Chrome will collect information about your computer and share it with Google Payments to prevent fraudulent use of your card.

To delete credit card information saved in Chrome, follow the “Add and edit credit cards” steps in the Autofill article. When you delete a credit card that's also saved in your Google Payments account, you will be redirected to the Google Payments to complete the deletion. After your card has been deleted from your Google Payments account, Chrome will automatically remove that card from your Autofill suggestions.

Chrome also supports the PaymentRequest API by allowing you to pay for purchases with credit cards from Autofill, Android Pay, and other payment apps already installed on your device. Android Pay and other payment apps are only available on an Android device. PaymentRequest allows the merchant to request the following information: full name, shipping address, billing address, phone number, email, credit card number, credit card expiration, CVV, and Android Pay credentials. Information is not shared with the merchant until you agree.

Geolocation

Google Chrome supports the Geolocation API, which provides access to fine-grained user location information with your consent.

By default, Chrome will request your permission when a web page asks for your location information, and does not send any location information to the web page unless you explicitly consent.

Furthermore, whenever you are on a web page which is using your location information, Chrome will display a location icon on the right side of the omnibox. You can click on this icon in order to find out more information or manage location settings.

Maps

In Chrome’s settings, by clicking “Show advanced settings.”, then clicking “Content Settings” and scrolling to the “Location” section, you can choose to allow all sites to receive your location information, have Chrome ask you every time (the default), or block all sites from receiving your location information. You can also configure exceptions for specific web sites.

In the Android version of Chrome, your default search engine automatically receives your location when you conduct a search. On the iOS version of Chrome, by default your location is sent to Google if you conduct a search from the omnibox. Read more about how your default search engine handles geolocation and how to manage your settings in the Omnibox section of the whitepaper.

If you do choose to share your location with a web site, Chrome will send local network information to Google (also used by other browsers such as Mozilla Firefox) in order to estimate your location. This local network information can include data about nearby Wi-Fi access points or cellular signal sites/towers (even if you’re not using them), and your computer’s IP address. The requests are logged, and aggregated and anonymized before being used to operate, support, and improve the overall quality of Google Chrome and Google Location Services.

For further reading on the privacy and user interface implications of the Geolocation API (as well as other HTML5 APIs), see ”Practical Privacy Concerns in a Real World Browser” written by two Google Chrome team members.

Speech to text

Chrome supports the Web Speech API, a mechanism for converting speech to text on a web page. It uses Google's servers to perform the conversion. Using the feature sends an audio recording to Google (audio data is not sent directly to the page itself), along with the domain of the website using the API, your default browser language and the language settings of the website. Cookies are not sent along with these requests.

Google Assistant "Ok Google"

The Google Assistant feature is integrated into some models of Chrome OS devices. If you opt in to the feature, Chrome OS listens for you to say "Ok Google" and sends the audio of the next thing you say, plus a few seconds before, to Google. Detection of the phrase "Ok Google" is performed locally on your computer, and the audio is only sent to Google after it detects "Ok Google". You can enable or disable this feature in Google Assistant Settings.

Enabling this feature in Chrome Settings will cause Chrome to listen whenever the screen is unlocked. On Chrome OS devices with a local audio processor, the device also listens when the device is asleep. On these devices, The Google Assistant feature only works if Voice & Audio Activity is enabled for your Google account. Chrome will prompt you to enable Voice & Audio Activity for the associated Google account if it is disabled.

Once the audio has been converted to text, a search with that text is submitted to Google. If you have used the “Ok Google” search before on a device but turned off Voice & Audio Activity later, your device is still capable of processing your voice and sending the audio to Google but the voice is deleted shortly.

You can determine your Chrome OS device’s behavior by examining the text in the "Search and Assistant" section of settings.

Google Cloud Print

The Google Cloud Print feature allows you to print documents from your browser over the Internet. You do not need a direct connection between the machine that executes Chrome and your printer.

If you choose to print a web page via Cloud Print, Chrome will generate a PDF of this website and upload it over an encrypted network connection to Google’s servers. If you choose to print other kinds of documents, they may be uploaded as raw documents to Google’s servers.

A print job will be downloaded by either a Chrome browser (“Connector”) or a Cloud Print capable printer that you selected when printing the website. In some cases the print job must be submitted to a third-party service to print (HP’s ePrint, for example).

The print job is deleted from Google’s servers when any of three criteria is met:

You delete the print job
The job has been printed and marked as printed by the printer/connector
The job has been queued on Google’s servers for 30 days

You can manage your printers and print jobs on the Google Cloud Print website.

SSL certificate reporting

Chrome stores locally a list of expected SSL certificate information for a variety of high-value websites, in an effort to prevent man-in-the-middle attacks. For Google websites and other websites that choose to opt in, Chrome will report a possible attack or misconfiguration. If the certificate provided by the web server doesn’t match the expected signature, Chrome reports information about the SSL certificate chain to Google or to a report collection endpoint of the website's choosing. Chrome sends these reports only for certificate chains that use a public root of trust.

Chrome also allows users to choose to send information that helps Google improve SSL warnings and error pages. You can opt in to this feature by checking the box on any SSL error page. While you are opted in, each time you see an SSL error page, a report will be sent to Google's security team. The report contains the SSL certificate chain, the server's hostname, the local time, and relevant details about the validation error and SSL error page type. Because Chrome sends these reports for all certificate chains, even those that chain to a private root of trust, these chains can contain personally identifiable information. You can opt out anytime by unchecking the box “Automatically report details of possible security incidents to Google” in the Privacy section of Chrome’s advanced settings.

The SSL certificate reporting feature is not available on Chrome iOS.

Token Binding

Chrome's Token Binding feature allows a server to validate in a strong way that new HTTPS sessions originate from the same client as a previous session. This assertion mitigates the risk of session theft because cookies can be cryptographically tied to a particular Token Binding ID. This feature makes it significantly more difficult to convert stolen cookies into stolen sessions. On the iOS version of Chrome, Token Binding is not used for requests made for web page loading.

Token Binding IDs do not contain any information about the user, and a different Token Binding ID is created for each secure origin. A Token Binding ID created for one server will be shared with another server only if the original server requests it to be shared. Token Binding IDs are not shared between Chrome profiles, and all Token Binding IDs created during Incognito browsing are destroyed when you exit the Incognito session. Note that Token Bindings are not used for requests that block cookies.

On desktop versions of Chrome, you can determine which Token Binding IDs have been created (and you can remove unwanted IDs) in the Cookies and Site Data dialog (available at chrome://settings/cookies). On all platforms, Token Binding IDs are subject to removal when "Cookies and Site Data" are cleared via the "Clear Browsing Data" dialog (chrome://settings/clearBrowserData). Token Binding is an evolution of the TLS Channel ID feature.

For more technical details and background information, visit browserauth.net and the work-in-progress IETF draft.

Installed Applications and Extensions

Users can install external apps and extensions for the desktop versions of Chrome to add features to or customize their Chrome browsers. Installing an application or extension from the Chrome Web Store directly or via an inline installation flow on a third-party site involves a request to the Chrome Web Store for details about the application. This request includes cookies, and if you’re logged into Google when you install an application, that installation is recorded as part of your Google account. The store uses this information to recommend applications to you in the future, and in aggregate to evaluate application popularity and usage. As noted above, applications and extensions are updated via Google Update.

As they're more deeply integrated into Chrome, applications and extensions that you choose to install can request access to additional capabilities, enabling functionality that doesn't make sense on the web at large: background notifications or raw socket access, for instance. These additional permissions may change the way your data is collected and shared, as extensions and applications might have access to data regarding the websites you visit, and might be capable of monitoring or modifying your interactions with the web. When installing an application or extension, Chrome may first warn you about certain capabilities. Please do take the time to read and evaluate this warning before proceeding with the installation. Note also that interactions with and data collected by these third-party applications and extensions are governed by their own privacy policies, not Google's privacy policy.

Push messaging

Your device may receive push messages from the backend servers of apps and extensions installed in Chrome, websites that you grant the “notification” permission to, and your default search engine. Disabling push messages from your default search engine is done in the same way as disabling push messages from any site, by visiting the “Notifications” section of “Site settings”.

Push message data is sent over a secure channel from the developer through Google’s infrastructure to Chrome on your device, which can wake up apps, extensions, and websites (including your default search engine) to deliver the message. The developer may end-to-end encrypt the message data, or may send it in a form such that Google servers process it as plain text. Google servers retain up to 4 weeks’ worth of messages to ensure delivery to users even if their devices are offline at the time of the initial pushing.

If the notification permission is set to “granted” for any website (including the default search engine), or you have an app or extension installed that uses push messaging, then Chrome provides the app’s, extension’s, or website’s server with one or more registration tokens that can be used to send messages to the entity (app, extension, or website). Websites you visit in Incognito mode are not allowed to send you push messages and therefore cannot get a registration token.

When you uninstall an app or extension, revoke the notification permission for a website, or clear cookies for a permitted website, its registration token is revoked and will not be reused, even if the same app or extension is re-installed or the same website is re-visited. Registration tokens used by Chrome components such as Sync are revoked once they are no longer in use (for example, when the user disables Sync). When a registration token is revoked, the associated entity on your device stops receiving messages sent from its developer’s server.

The registration tokens that are passed to entities contain an encrypted device ID, which is used for routing the messages. Google can decrypt the device ID, but other entities cannot, and the encryption is designed so that two registration tokens for the same device ID cannot be correlated. On desktop versions of Chrome, the device ID is reset when the Chrome profile is removed (via the “People” section in Chrome’s Settings), or when neither Chrome Sync nor any of the entities requires it for push messaging. On Android, the lifetime of the device ID is governed by the operating system and is independent of Chrome. Any messages routed to registration tokens containing a revoked device ID will not be delivered.

Chrome custom tabs

On Android devices, an app developer may use a Custom Tab to show web content when you click on a URL from their app. A Custom Tab may look different from a regular Chrome tab, for example it may have app-specified visual style, and the absence of an editable URL bar. Despite the different visual style a Custom Tab may have, the data sent and received in the Custom Tab, such as cookies, saved passwords and browsing history function the same way they do in a normal Chrome tab. The Custom Tab is an app-customized view using the same underlying user profile.

With Chrome Custom Tabs, an Android app developer may also specify custom actions in the Chrome toolbar and overflow menu that are relevant to their app, for example,"share", “save page”, “copy URL”. If you tap on such a button, the address of the current website is shared with the application.

An application can request Chrome to pre-render a given URL in the background. This allows Chrome to show you a pre-loaded site instantly when you open it from the app. At the same time it allows an application to set cookies in your browser in the background. To disable pre-rendering, you can uncheck "Prefetch page resources" in the privacy settings.

Continue where you left off

If you have selected the option to “Continue where you left off” in settings on desktop versions of Chrome, when you open Chrome, it attempts to bring you right back to the way things were when the browser was closed. Chrome reloads the tabs you had open and persists session information to get you up and running as quickly as possible. This feature effectively extends a browsing session across restarts. In this mode, session cookies are no longer deleted when the browser closes; instead, they remain available on restart to keep you logged into your favorite sites.

On desktop versions of Chrome, this feature can be enabled or disabled in Chrome settings. On Chrome OS, it is enabled by default.

On OS X, when you restart your device, a checkbox in the OS confirmation dialog asks you whether you want to re-open applications and windows after restart. If you check this box, Chrome restores tabs and windows, as well as the session cookies, even if you have disabled "Continue where you left off" on Chrome.

On mobile versions of Chrome, this feature is always enabled without a setting.

Chrome Variations

We want to build features that users want, so a subset of users may get a sneak peek at new functionality being tested before it’s launched to the world at large. A list of field trials that are currently active on your installation of Chrome will be included in all requests sent to Google. This Chrome-Variations header (X-Client-Data) will not contain any personally identifiable information, and will only describe the state of the installation of Chrome itself, including active variations, as well as server-side experiments that may affect the installation.

The variations active for a given installation are determined by a seed number which is randomly selected on first run. If usage statistics and crash reports are disabled, this number is chosen between 0 and 7999 (13 bits of entropy). If you would like to reset your variations seed, run Chrome with the command line flag “--reset-variation-state”. Experiments may be further limited by country (determined by your IP address), operating system, Chrome version and other parameters.

Do Not Track

If you enable the “Do Not Track” preference in Chrome’s settings, Chrome will send a DNT:1 HTTP header with your outgoing HTTP, HTTPS and SPDY browsing traffic (Chrome cannot, however, guarantee that NPAPI plugins also send the header.) The header will not be sent with system traffic such as the geolocation, metrics or device management services.

The effect of Do Not Track depends on whether a website responds to the request, and how the request is interpreted. For example, some websites may respond to this request by showing you ads that aren't based on other websites you've visited. Many websites will still collect and use your browsing data - for example, to improve security; to provide content, services, ads and recommendations on their websites; and to generate reporting statistics.

Chrome on iOS now uses WKWebView to provide a more stable and faster browser. As a result of this move, the Do Not Track preference is no longer available due to iOS constraints. If Apple makes changes to allow this feature, Chrome will make Do Not Track available again in iOS.

Plugins

Chrome ships with an Adobe Flash Player implementation that is based on the Pepper API. Flash and other Pepper-based plugins may ask you for “Access to your computer”. If you grant this permission, the plugin is granted unsandboxed access. This allows content providers to offer you access to DRM protected content like videos or music but may have security and privacy implications, so consider carefully whether you trust a plugin or website with this privilege.

Media licenses

Some websites encrypt media to protect against unauthorized access and copying. When users play media from these sites, they typically log into the site, which authenticates the user, and then digital rights management negotiates a key exchange for the decryption and playback of the media.

For HTML5 sites, this key exchange is done using the Encrypted Media Extensions API. The implementation of that API is tightly coupled with the browser to protect user privacy and security, through Content Decryption Modules (CDM), which are provided by digital rights management solutions such as Google Widevine or Microsoft PlayReady.

When a user asks Chrome to play encrypted HTML5 media (for example, watching a movie on Google Play Movies), Chrome will generate a request for a license to decrypt that media. This license request contains an automatically generated request ID, which is created by the Content Decryption Module, as well as proof that the CDM is legitimate. After generation, the license request is typically sent to a license server managed by either the content website or Google. Neither the license request, the proof, nor the request ID include any personally identifying information. After being sent, the license request is not stored locally on the user’s device.

As part of the license request, Chrome also generates a unique session ID which does not contain personally identifying information. This session ID is sent to the license server, and when the server returns a license the session ID is used to decrypt the media. The session ID may be stored locally even after the site has been closed. The license may also be stored locally for offline consumption of protected content (on platforms that support this such as Android and Chrome OS). Session ID and licenses may be cleared by the user in Chrome using Clear Browsing Data with “Media licenses” enabled.

When returning a license, the site license server may include a client ID, generated by the site. This client ID is unique to the user and the site, it is not shared between sites. If provided, the client ID is included by Chrome in subsequent license requests to that site. The client ID may be cleared by the user in Chrome using Clear Browsing Data with “Media licenses” enabled.

On Chrome OS, the website may additionally request verification that the device is eligible to play HD or other high quality content (known as Verified Access). In this case, Google creates a certificate using a unique hardware identifier for the device. This hardware ID identifies the device, but does not identify the user. Before Chrome sends this hardware ID to Google, the user is prompted asking permission to do so. If the user agrees, Google receives the hardware ID and generates a certificate verifying the device for the requested site. The certificate does not include the hardware ID or any other information that could permanently identify the device. Certificates are stored locally similar to other cached browsing data, and may be cleared by the user in Chrome using Clear Browsing Data with “Media licenses” enabled.

Some sites use Flash instead of HTML5. If a website you visit chooses to use Adobe Flash Access DRM protection, Chrome for Windows and Chrome OS will give Adobe Flash access to a device identifier. You can deny this access in the settings under Content Settings, Protected content, and reset the ID using Clear Browsing Data with “Media licenses” enabled.

In order to give you access to licensed music, the Google Play Music app can retrieve a device identifier that is derived from your hard drive partitions or, on a Chrome OS or Linux installation, from a unique file on your disk. This identifier can be reset by reinstalling your operating system.

Cloud policy

When you sign into a Chrome OS device, Chrome on Android, or a desktop Chrome profile with an account associated with a Google Apps domain, Chrome checks whether the domain has configured enterprise policies. If so, the Chrome OS user session or Chrome profile is assigned a unique ID, and registered as belonging to that domain. Any configured policies are applied to the profile. In order to revoke the registration, you'll need to remove the Chrome OS user profile, sign out of Chrome on Android, or remove the desktop profile.

Additionally, Chrome OS devices can be enrolled to a Google Apps domain by a domain admin. This will enforce enterprise policies for the entire device, such as providing shared network configurations and restricting access to developer mode. When a Chrome OS device is enrolled to a domain, then a unique device ID is registered to the device. In order to revoke the registration, the admin will need to wipe the entire Chrome OS device.

Registered profiles and devices check for policy changes periodically (every 3 hours by default). In some cases, the server pushes policy changes to the client without waiting for Chrome's periodic check. Unregistered profiles check whether a policy has been turned on for their domain each time Chrome starts up.

The policy list contains details about the types of configurations that are available via Cloud Policy.

Data Saver

If you enable Data Saver, Chrome will send your HTTP traffic through Google's optimizing proxy servers. This option reduces the amount of data downloaded, and protects you against malware and phishing via the Safe Browsing service. You can find more information about the data compression benefits on the Chromium blog.

The proxy service is disabled for connections to HTTPS origins and connections made from Incognito tabs. These connections are not routed through Google's servers. For connections to HTTP origins, request URLs are logged. Cookies and If-None-Match headers are stripped from the logs. Additionally, the content of proxied pages is also cached but not logged. The logs are not associated with your Google Account, and the entire log entry is removed within 6 months. These logs are also governed by standard Google search logging policies.

Google uses the logged and cached data to improve both Data Saver and Safe Browsing; for example, more effective optimizations can be uncovered by analyzing timing data for pages loaded through the proxy service, and malware can be detected more rapidly by analyzing response data in realtime.

Your IP address is forwarded to the origin HTTP server via an X-Forwarded-For header, in accordance with the HTTP standard. The Data Saver service is a transparent proxy, not an anonymization service.

By default, the connection between the browser and the Data Saver proxy is over an encrypted channel. However, a network administrator can disable the use of an encrypted channel to Data Saver.

Supervised Users

If you create a supervised user on Chrome or Chrome OS, certain information such as the supervised user’s browsing activity, profile settings and permissions requests for blocked content will be sent to Google in association with your Google Account. You can access the browsing activity of your supervised users at chrome.com/manage. In order to remove data that is associated with a supervised user from Google’s servers, please sign in to your Google Account at chrome.com/manage and delete the respective supervised user.

Using Chrome with a kid’s Google Account

Chrome for Android offers features to be used when signed in with a kid's Google Account and automatically signs in a kid's account if they've signed into the Android device. Chrome uses the Sync feature to sync settings configured by parents to the kid’s account. You can read about how Sync data is used in the Sign in section of this Whitepaper.

The collection and use of Chrome data in association with a kid’s Google Account are governed by the Google Family Link - Children’s Privacy Policy.

In order for the configured settings to apply to a kid’s account, Chrome does not support the following features for a kid’s Google Account: signing out of Chrome, Incognito mode, and deleting browsing history from within Chrome. Browsing history can still be removed in the Chrome section of the Google Dashboard.

By default, first party cookie blocking is disabled when Chrome is signed in with a kid’s account. Parents can go to chrome.google.com/manage/family to allow their kids to block first party cookies. However, blocking cookies signs kids out of Google web products such as Google Search or YouTube and therefore prevents these products from providing any features designed for kids’ Google Accounts.

When Chrome is used with a kid’s Google Account, information about the kid’s requests to access blocked content is sent to Google and made visible to the kid’s parent(s) on chrome.google.com/manage/family and in the Google Family Link app. If the kid’s browsing mode is set to “Try to block mature sites”, Chrome will send a request to the Google SafeSearch service for each navigation in order to block access to sites that have been classified as containing mature content.

Incognito and Guest Mode

Incognito mode in Chrome is a temporary browsing mode. It ensures that you don’t leave browsing history and cookies on your computer. The browsing history and cookies are deleted only once you have closed the last incognito window. Incognito mode cannot make you invisible on the internet. Websites that you navigate to may record your visits. Going incognito doesn’t hide your browsing from your employer, your internet service provider, or the websites you visit.

Browsing as a Guest in Chrome allows you to use somebody else's computer without modifying their profile. For example, no bookmarks or passwords get stored on their computer. Note that Guest mode does not protect you for example, if the computer you are using is infected by a keylogger that records what you type.

iOS 8 and Mac OS X Yosemite Handoff Support

While browsing in a standard (i.e. non-Incognito) session, Chrome will share your current URL with iOS 8+ to support the Handoff feature that was added in OS X Yosemite. This information is only sent to Apple devices that are paired with your iOS device, and the data is encrypted in transit.

More information is available at Apple Support, Apple Developers, and in the Apple iOS Security Guide. Chrome support for this feature can be disabled in Chrome settings.

Security Key

A FIDO U2F Security Key provides a non-phishable credential which can be used to authenticate a user. This mitigates the risk of various kinds of man-in-the-middle attacks in which websites try to steal your password and use it later.

To prevent abuse, a website is required to be delivered over a secure connection (HTTPS), and to register the security key before it can be used for identification. Once a website is registered with a specific security key, that security key will provide a persistent identifier, regardless of which computer it is plugged into, or whether you're in incognito or guest mode, but you must physically interact with the security key to give a website access to an identifier (by, for example, touching it, or plugging it in).

Physical Web

The Physical Web lets you see a list of URLs being broadcast by objects in the environment around you. Google Chrome looks for Physical Web devices with Bluetooth Low Energy beacons that are broadcasting URLs using the Eddystone protocol. Bluetooth signals can be received from 90 feet away or more, depending on signal strength and the user’s environment (although the range is often much shorter, due to obstacles and signal noise). If the Physical Web feature is enabled, Chrome sends detected URLs to Google’s Physical Web Service (PWS) via a cookieless HTTPS request. For each URL, the PWS obtains the title of the web page, filters out unsafe results, and returns a ranking based on non-personalized signals about the quality and relevance of the web page.

The Physical Web feature is available on Chrome on iOS and Android. Users will need to turn on Bluetooth to use the feature.

If Android users have location settings enabled on both their device and in Chrome, they will receive a notification the first time they are near a beacon that will give them the option to turn on the Physical Web feature. This beacon’s URL is not sent to Google’s PWS unless the Physical Web feature is enabled. Users can also enable (or disable) the feature in the Privacy settings. Once a user enables the feature, Chrome scans for nearby devices for a few seconds each time the user unlocks the mobile device in use and sends them to the PWS in order to obtain more information about the beacon. The user receives a silent notification when Chrome finds a nearby URL.

On iOS devices, users can enable (or disable) the feature in the Privacy settings or by adding the Chrome widget to their Today view in the notification center. Additionally, the feature is automatically enabled for users who have location enabled on their device, granted Chrome the location permission, and have granted Google the geolocation permission. Chrome scans for nearby devices whenever it is open in the foreground. When Chrome finds nearby URLs, users will see them as omnibox suggestions. Additionally, Chrome scans for nearby devices for a few seconds when the Today widget is displayed in the notification center.

Bluetooth

Google Chrome supports the Web Bluetooth API, which provides websites with access to nearby Bluetooth Low Energy devices with your consent.

Chrome does not let any page communicate with a device unless you explicitly consent. When a web page asks to pair with a device, Chrome will ask you to choose which device the web page should access, if any. Selecting a device for one page does not give other pages access to the device you have chosen, and does not allow that page to access other devices. Currently, permission for a page to communicate with a device is usually revoked when the page is reloaded, and is always revoked when Chrome is restarted.

Chrome data that Android sends to Google

The data collection and usage described in this section is handled by Android and governed by the Google Privacy Policy.

If the Android Backup Service is enabled on your device, some of your Chrome preferences will be saved and stored on Google servers. For Nexus and Android One devices, it is described under “Back up your data and settings with Android Backup Service” in this article. For other Android devices, you may be able to find help by looking up your device on this page. When setting up a new Android device, you may request that it copies the preferences from a previously set up device. If you do so, Android may restore backed up Chrome preferences when Chrome is first installed. The new device only copies the preferences if automatic restore is enabled (see “Restore your data and settings” in the same article), Chrome was signed into an account when the backup was made, and the new Android device is signed into that same account.

Chrome’s backup data for a particular device may also be restored if you uninstall and then later re-install Chrome on that device. This will only happen if automatic restore is enabled and the device is signed into the account that Chrome was signed into when the backup was made.

www.google.com

Websetnet - chrome

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