What is defined as an automated method used to identify or authenticate the identity of a living person based on physiological or behavioral characteristics?

The correct answer is based on the definition of biometrics, which refers to the automated methods that utilize physiological or behavioral characteristics for the purpose of identifying or authenticating a living person's identity. Physiological characteristics can include traits such as fingerprints, facial recognition, or iris scans, while behavioral characteristics may encompass patterns like voice recognition or keystroke dynamics.

Biometrics leverages unique attributes of individuals, making it a highly effective method for ensuring that individuals are properly identified in various security and access systems. This technology is widely used in areas such as security systems, device unlocking, and identity verification due to its ability to provide reliable and efficient verification of a person’s identity.

In contrast, the other terms have different meanings. Identification refers broadly to the process of establishing the identity of an individual but does not specifically involve automation or the use of physiological traits. Surveillance involves monitoring behavior or activities, usually for security purposes, without necessarily confirming identity through biometrics. Authentication refers to the process of verifying the truth of something, such as confirming that an identity presented is valid, but it does not specifically encompass the unique methods and technologies associated with biometric identification.