A method of authentication that requires two or more forms of evidence used to identify a person. One form of evidence may be something the user knows, such as a password or PIN. A second form of evidence may be something the user has, such as an ATM card or mobile device. The third may be biometric data such as a fingerprint. Two-factor authentication is considered multi-factor authentication since it uses more than one factor for verification.
See DynaPass Two-factor Authentication
