Just a few weeks ago, a new "safe folder" feature was spotted in development for the Files by Google app, allowing you to move files into a PIN- or password-protected folder where they would be encrypted and inaccessible to other apps. Although the feature was never formally released to consumers, XDA Developers managed to get it working. Now, two weeks later, a warning message in the app states that the unreleased feature is "no longer supported."
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