https://www.sciencedaily.com/releases/2023/06/230627123411.htm

Voice authentication -- which allows companies to verify the identity of their clients via a supposedly unique "voiceprint" -- has increasingly been used in remote banking, call centers and other security-critical scenarios.

"When enrolling in voice authentication, you are asked to repeat a certain phrase in your own voice. The system then extracts a unique vocal signature (voiceprint) from this provided phrase and stores it on a server," said Andre Kassis, a Computer Security and Privacy PhD candidate and the lead author of a study detailing the research.