Biometric Authentication: A Comprehensive Guide Biometric Authentication is the process of using unique physical or behavioral characteristics to verify the identity of an individual. This form of authentication is increasingly used in security systems as it provides a higher level of accuracy and security compared to traditional methods like passwords, PINs, or security tokens. Biometrics are inherently difficult to replicate, making them one of the most secure ways to authenticate individuals. Biometric Authentication is a powerful and secure method for verifying identity, offering significant advantages in terms of security, convenience, and fraud prevention.