**What is an example of biometric authentication?**
An example of biometric authentication is fingerprint recognition, which uses unique patterns of ridges and valleys on an individual’s fingertip to verify identity. This technology is commonly employed in smartphones, security systems, and access control devices. Fingerprint scanners utilize sensors to capture the fingerprint, converting it into a digital template for comparison against stored data. Biometric authentication is increasingly favored for its convenience and enhanced security over traditional methods like passwords, as it is difficult to replicate, providing robust protection against unauthorized access.