It turns out that it’s no longer safe to type in passwords when using a connected device in public even if no one’s looking over your shoulder. It was announced today that computer forensics experts at the University of Massachusetts in Lowell have discovered a method for stealing a password entered on a smartphone or tablet using video taken Google Glass or other video-capturing devices.
Google Glass: Details on the method used to figure out passwords
The U Mass researchers developed sophisticated software that can map the shadows from fingertips as they type on a tablet or smartphone. Then an algorithm converts those touch points into the actual keys they were touching, meaning the researchers can decipher the password.