Biometric security systems use unique physical characteristics like fingerprints, facial recognition, and iris scans to verify identity. These systems are widely used in smartphones, airports, and secure facilities to ensure that only authorized individuals gain access. Fingerprint recognition is one of the most common biometric methods, providing quick and reliable authentication.
Facial recognition technology is also becoming more prevalent, with many smartphones and surveillance systems using it for identity verification. Biometric security offers a higher level of protection than traditional passwords or PINs, as it is difficult to replicate or steal physical characteristics.