Biometric systems enhance security measures by utilizing unique biological traits, such as fingerprints, facial recognition, or iris patterns, for identification and authentication. These systems offer a higher level of security than traditional methods like passwords or PINs, as biometrics are inherently difficult to replicate or forge. By providing a more reliable means of access control, biometric systems are increasingly used in various sectors, including banking, law enforcement, and personal devices. They enhance user convenience and security, making unauthorized access significantly more challenging.