Something you are: Biometric authentication
Authenticated based on the user’s unique physical characteristics. (traits, features) of a person such as face, finger prints, iris patterns,
hand geometry (maybe even DNA at some time in the future). [5]
Biometrics may seem to offer the most secure solution for
authenticating a person.
Complex and expensive compare to passwords and tokens.
Based on
pattern recognition
Hence, accuracy concept is involved (how closely it is matched)
accuracy doesn’t apply with passwords and tokens หมายความวา ???