Patent ID: 11960584
Assignee: NICE LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. A method for fraud prevention upscaling with a fraudster voice print watchlist for a voice biometric system, which method comprises:
determining that a first number of a plurality of voice prints in the fraudster voice print watchlist is below or at a first scale of voice prints;
performing, when the first number of voice prints is below or at the first scale of voice prints, first voice authentications for the voice biometric system by matching first received voice prints to the plurality of voice prints in the fraudster voice print watchlist using similarity scores between the first received voice prints and the plurality of voice prints;
receiving a first voice print of a user during a voice authentication request;
accessing the fraudster voice print watchlist comprising voice print representatives for a plurality of voice print clusters each having one or more of the plurality of voice prints identified as fraudulent for the voice biometric system;
determining that one or more of the voice print representatives in the fraudster voice print watchlist meets or exceeds a first biometric threshold for risk detection of the first voice print during fraud prevention operations; and
determining whether the first voice print matches a first one of the plurality of voice print clusters based on a first similarity score between the first voice print and a representative of the first one of the plurality of voice print clusters.