Physiological biometrics

Physiological biometrics refer to unique physical characteristics of an individual used for identification or verification. These include traits like fingerprints, facial structure, eye patterns (iris or retina), voice, and hand geometry. Because these features are inherent and relatively stable over time, they allow systems to accurately recognize a person without needing a password or code. Physiological biometrics are widely used in security, unlocking devices, and access control, offering a quick and reliable way to confirm identity based on physical attributes that are difficult to duplicate or share.