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Face Authentication Check

Facial biometric authentication for passwordless login and account recovery.

Face Authentication Check Overview

The Face Authentication Check is a facial biometric authentication service.

It uses our face match and liveness engine to authenticate your customer's facial attributes against their enrolled face.

This type of check requires a customer's face to be enrolled first.

We recommend running this type of check through our Hosted Solution, Web SDK, or native Mobile SDKs.

Common use cases

Use Face Authentication when you need fast biometric customer authentication:

  • Passwordless login: Replace passwords with selfie-based face authentication.

  • Account recovery: Re-authenticate users for account reactivation and unlock flows.

  • Step-up authentication: Add a biometric challenge for high-risk actions.

  • Periodic KYC re-verification: Confirm the same user returns over time.

Analysis performed

The Face Authentication Check confirms whether a customer’s live face matches their previously enrolled face.

The diagram below outlines the key analysis categories.


Face Authentication Overview: Selfie-based Biometric Matching and Liveness Scoring

Detailed verification checks

Analysis
Verifications Performed

Face authentication

Determines whether the live selfie matches the enrolled face.

Liveness scoring

Returns a confidence score between 0–100%. 100% indicates a highly reliable live presence. 0% indicates a likely spoof attempt.

Check duration

A Face Authentication Check takes an average of 2 seconds to complete.

Frequently asked questions

What is the difference between Face Authentication Check and Identity Check?

Face Authentication Check compares a live selfie to a previously enrolled face.

Identity Check compares a live selfie to an ID document photo during onboarding.

Do I need to enroll the customer’s face first?

Yes.

Face Authentication Check requires the customer’s face to be enrolled before authentication can take place.

Can Face Authentication Check detect spoofing or fake selfie attempts?

Yes.

Face Authentication Check includes liveness scoring to help detect spoofing attempts and confirm the customer is physically present during capture.

Can Face Authentication Check help prevent account takeover?

Yes.

It helps reduce account takeover risk by confirming that the person attempting access matches the enrolled biometric identity.

You’ll typically run Face Authentication Check alongside:

  • Identity Check runs selfie liveness and face match against an ID photo. It can also enroll the face.

  • Enhanced Identity Check when you need video challenges for higher assurance.

  • Device Intelligence to add device-level fraud signals to authentication flows.

Use these docs when designing end-to-end onboarding and authentication journeys: