22 Oct
Adding biometric confirmation to risky payments is first about fitting a new step into the current business process, and only then about the face or voice scan.
- Understand which modules are involved, how they interact, and which one makes the decision and when.
- Map every branch before drawing screens: no camera access, no consent, three failed tries.
- Keep a fallback, for example a call to support.
- Let people finish later without losing progress.
That’s how I approached biometric ID a while ago. Confirmation went from minutes to seconds for 8.5M monthly users.