Biometric technology refers to the measurement and analysis of unique physical or behavioral characteristics to identify individuals. Common biometric traits include fingerprints, facial recognition, iris patterns, and voice recognition. This technology is widely used for security purposes, such as unlocking smartphones or accessing secure facilities. The main advantage of biometric technology is its ability to provide a high level of security, as biometric traits are difficult to replicate. However, concerns about privacy and data protection have arisen, leading to discussions about the ethical implications of using biometrics in various applications, including law enforcement and personal devices like smartphones.