There are a number of advantages to biometric authentication. Unlike a password, you never forget what it is and unlike a smart card, you never leave it at home. Fingerprints are the traditional form of biometric identification but not the only one. Blink! is a program that uses facial recognition to log you onto Windows. It works with Vista and Windows 7 32 or 64 bit operating systems. For the user, it could hardly be easier: all you have to do is look into a web cam. Best of all, it’s free.
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