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Biometric Authentication

Biometric authentication is a process of establishing the identity of a user by measuring some aspect of that user's physical self. It is one of three basic approaches to authentication -- the others being use of a secret (something the user knows) or a device (i.e., something the user has).

Examples of biometrics include:

Biometrics are generally considered to be very convenient to use -- users do not leave their fingers at home or forget how to use them, for example.

Biometrics are often thought of as quite secure, but there are weaknesses:

When considering a biometric system, organizations normally take into account:

Typical values for each of the above three rates are on the order of from 0.1% to 2%.

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