Biometric technology in personal identification systems uses unique physical characteristics, like fingerprints, facial recognition, or iris patterns, to verify an individual's identity. This technology offers enhanced security and convenience compared to traditional methods such as passwords or ID cards. Biometric systems are increasingly utilized in smartphones, bank transactions, and secure access to facilities, providing a higher level of assurance against unauthorized access. However, the implementation of biometric technology also raises concerns regarding privacy and data protection, necessitating compliant and robust security measures.