University of Massachusetts Lowell

Researchers at the University of Massachusetts Lowell have demonstrated an interesting (and slightly scary) technique for using Google Glass to detect phone PINs with 83 percent accuracy from across a room – even when the screen wasn’t visible.

The technique used applies an image-recognition algorithm that doesn’t need direct sight of the screen. Instead, it uses a reference image of the target device to detect the angle at which it’s being held, then tracks the shadows from finger taps to detect which on-screen keys are being pressed … 
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