The venture of biometrics into the field of security has become a common phenomenon now. There are several security devices that function on biometrics such as iris scanners, voice recognitions, hand readers. But it is the fingerprint readers that are the most common application of biometrics & security. Everyone knows of them and locks with fingerprint readers are being used everywhere. These fingerprint readers are easy to use and above all they are affordable. But the biggest flaw of these fingerprint readers is that they can be fooled very easily.