Patent attributes
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for authenticating a user using a voice biometric program are described. In some embodiments, first voice data from a user device is received. The first voice data can include audio data of a user speaking a first voice command, and the system can determine that the first voice command includes a voice command for which voice recognition can be performed. In response, the system can initiate a passive authentication scheme for selectively enabling access to secure data in response to the first voice command. The passive authentication scheme can provide the first voice data for voice recognition and receive an indication that the user is authenticated based on the voice recognition and, in response, allow access to a back-end system.