Apple's iPhone captures snapshots of all the actions made by its user, says a hacker.

According to Jonathan Zdziarski, who highlighted the discovery during a webcast about how to hack a password-protected iPhone, the shots are taken as part of the device's fade away effect which takes place when the home button is pressed. Although the screenshots are deleted after the application is closed, they can be recovered using forensics techniques if required by law, similar to the way data deleted from most storage devices can be reconstructed.

Zdziarski told Wired.com: "I'm kind of divided on it. I hope Apple fixes it because it's a significant privacy leak but, at the same time, it's been useful for investigating criminals."

Apple was unavailable for comment.

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