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Biometric Verification

Overview

Biometric verification confirms that a user is the legitimate account holder by comparing a live biometric sample to an enrolled template. Modalities include face, fingerprint, voice, and iris. Strong implementations pair liveness detection with presentation attack defenses to prevent spoofs using photos, masks, or recorded audio. Enrollment quality, device capabilities, and environmental conditions affect accuracy, so systems enforce capture guidance and quality thresholds.
Risk based policies apply stricter settings for high value actions or administrator roles. Privacy is critical, with on device template storage when possible, encryption, and minimal retention. Provide recovery paths using re proofing and secondary authenticators in case of device loss. Combined with passkeys or FIDO, biometrics deliver phishing resistant, low friction authentication for recurring access and step up events.

FAQ

Why add liveness checks?

Matching alone can be fooled by physical and digital spoofs. Liveness confirms a real person is present, significantly reducing successful attacks during remote authentication.

Can biometrics replace passwords entirely?

Often, when paired with device bound keys and strong recovery processes. For high risk roles, layer hardware tokens or additional factors to meet policy and regulator expectations.

How do we handle failures?

Offer guided recapture, fallbacks like passkeys or hardware keys, and assisted verification for accessibility needs. Log attempts and decisions for audit and tuning.

Are templates stored centrally?

Prefer on device secure enclaves when available. If server templates are required, encrypt at rest, restrict access, and rotate keys under strict governance.