Authentication using the unique acoustic characteristics of a person's voice — pitch, cadence, accent, pronunciation — for phone or voice-assistant channels, vulnerable to audio deepfake attacks.
Category: biometrics. Part of the Identity Technologist Glossary — 158+ practitioner-grade definitions covering identity verification, KYC/AML, biometrics, fraud prevention, and compliance. See all terms at https://identitytechnologist.com/glossary.