A new Liveness Check feature in Android 4.1 Jelly Bean, requires you to blink your eye during Face Unlock. This feature prevents anyone from using a photo to unlock the device.
Android 4.1 Jelly Bean has been making rounds ever since it launched at Google I/O 2012 and there are some minor tweaks all across the OS and there’s no short of feature improvements. Face Unlock was one of the Beta features that came out with Android 4.0 Ice Cream Sandwich. But with Jelly Bean, the company has taken a step to make it mature, by acting brilliant. The Face Unlock feature can now request for an eye blink to check if the device is looking at a real human face or just a picture of the owner.
This is a brilliant improvement, since the original Face Unlock has always been criticized since it can be fooled by just showing a picture of the owner who’s been programmed onto the device to get recognized. But still, this might look like an improvement, which can still be bypassed by just showing the device a video of the person blinking his eye! Its a little complex though!
Via: Talk Android