Biometric identification is a technology that uses unique physical or behavioral traits to verify a person's identity. Common biometric traits include fingerprints, facial recognition, iris patterns, and voice recognition. This method is often used in security systems, smartphones, and border control to ensure that individuals are who they claim to be. The process involves capturing a biometric sample, converting it into a digital format, and comparing it against a stored template in a database. If the sample matches the template, access is granted. This technology is considered more secure than traditional methods like passwords, as biometric traits are difficult to replicate or steal.