Biometric recognition: Security and privacy concerns

Various aspects and advantages of biometric system are presented. A biometric system is essentially a pattern-recognition system that recognizes a person based on a feature vector derived from a specific physiological or behavioral characteristic that the person possesses. Depending on the application context, a biometric system typically operates in one of two modes: verification or identification. In verification mode, the system validates a person's identity by comparing the captured biometric characteristic with the individual's biometric template, which is prestored in the system database.