Biometric authentication refers to security processes that authenticate a user’s identity through unique biological characteristics such as retinas, voices, facial, and fingerprints. Biometric authentication systems store this biometric data to verify a user’s identity when authenticating their account. The word biometric is a combination of bio (human) and metric (measurement). In simpler terms, biometrics are metrics related to human features that make an individual different from others. Biometric data is unique to individual users, and biometric authentication is generally more secure than other authentication.

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