Overview
Biometric authentication uses physical or behavioral traits to grant access to systems or data. It is increasingly popular as a convenient and secure alternative to passwords.
Common Types
- Fingerprint Recognition: Scanning the unique patterns on a fingertip.
- Facial Recognition: Analyzing facial features and geometry.
- Iris/Retina Scanning: Mapping the unique patterns in the eye.
- Voice Recognition: Identifying the unique characteristics of a person's voice.
Challenges
- Privacy: Concerns about the collection and storage of sensitive biological data.
- Spoofing: The use of high-quality photos or 3D masks to trick sensors.
- Irreplaceability: Unlike a password, you cannot change your fingerprint if it is compromised.