Last year, when Google announced
Android 4.0 Ice Cream Sandwich, one of the highlights of the
operating system update was that one could unlock their handsets with
their face using a face recognition mechanism called Face Unlock.
This was a neat concept as opposed to punching in a code or using a
pattern to unlock your device.
However, this system did come with its
security vulnerabilities as a person could unlock a handset with a
photograph.
This was a major threat to the security
of your phone since most of the people activate this feature without
thinking about this security vulnerability.
With the JellyBean release of the
Android, Google has improved the face unlock feature with a mechanism
called a "liveness check". With this feature
the system will make sure the person in front of the camera is
alive or not i.e. it will check if the person in front is blinking or
not.
This will make sure that photograph of you will not be able to unlock your JellyBean phone and it will improve the security.
Cheers !!!
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