​KembaraXtra-Computer Terms – biometrics:
Biometrics traditionally refers to the scientific measurement and analysis of human biological characteristics. In computing and information security, the term is used to describe authentication methods that rely on unique biological features to identify or verify an individual. These measurable characteristics can include fingerprints, hand geometry, voice patterns, or retinal scans. Such technologies are commonly used to control access to computer systems, secure areas, or online accounts.
Security systems are generally classified into three levels based on the type of authentication used. The first level relies on something a person possesses, such as an identification card or access token. The second level depends on something the person knows, such as a password or security code. The third and most secure level uses biometric traits that are inherent to the individual, such as fingerprints, retinal patterns, or voice characteristics.