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Researchers use smartphone cams to hack pins

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Researchers have found a way to hack into your smartphone and figure out your pin.

For those of you who enter a pin to unlock your smartphone, your phone might not be as secure as you think.

Researchers have found a way to secretly record what pin you're trying to enter by using the device's built-in cameras and microphones.

Here's how it works: Many phones vibrate when you enter your pin.

The pin-skimmer program uses the phone's microphone to detect those tiny vibrations.

Then, using images and short video recorded by the phone's camera, the program can deduce what part of the screen you're touching or what number you're typing.

The research at the University of Cambridge is meant to discover and exploit holes in cyber-security before criminals do the same thing.

A paper published, lastTthursday, explains the flaw and suggests ways programmers could close fix the problem and enhance security.

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