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Secure flag

  Technique summary
Technique Secure flag
Against Screen recording attacks
Limitations None
Side effects Protected views do not appear on screenshots or recordings, and cannot be shared with remote viewing software
Recommendations Recommended for use

The use of FLAG_SECURE is a well-known Android security measure to prevent sensitive data being leaked through the screen.

One specific issue that FLAG_SECURE does not address on older Android versions is that the keyboard and cursor are visible while FLAG_SECURE is set on the application activity in such a way that it is possible to retrieve the sensitive data. Please see secure in-app keyboard for more information.

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