Session Management / Auto-Generated Screenhots

Mobile AppWeb and API


Manufacturers want to provide device users with an aesthetically pleasing effect when an application is started or exited, so they introduced the concept of saving a screenshot when the application goes into the background.


This feature can pose a security risk because screenshots (which may display sensitive information such as an email or corporate documents) are written to local storage, where they can be recovered by a rogue application with a sandbox bypass exploit or someone who steals the device.


When backgrounding the app, the background image should be overlaid with a pre-defined image. This prevents the application from leaking sensitive information, as it will always override the current view.

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