Google seems to be testing a tool to make Incognito browsing even more private in Chrome for iOS.
The beta version of the iOS Chrome app has introduced a feature that requires Touch ID or Face ID to unlock Incognito tabs that you may not want others to have access to. When enabled, returning to Chrome after a closed session will display a vague Incognito tab and require access to authentication, per release notes provided by 9to5Google. Google said in the notes that the feature is intended to “add more security to your Incognito tabs.”
To enable the feature, go to Institutions, navigate to Privacy, and select Close Incognito tabs when you close Chrome. According to 9to5Google, the feature is not available to anyone using the beta version of the Chrome app on iOS. Google did not immediately return a request for comment on the feature and its wider implementation.
As 9to5Google noted, a version of this privacy setting is already available in the primary Google search engine, though the privacy setting will be activated after you leave the session for 15 minutes. To enable it, open the main Google app, go to Institutions, choose Privacy and security, and turn the option on Enable Face ID for incognito mode.