A method for enhancing the accuracy performance of authentication systems includes determining an authentication data requirement for a desired transaction and at least one new verification phrase. The method also includes capturing authentication data from a user with a communications device in accordance with the authentication data requirement, and capturing biometric data of the at least one new verification phrase from the user with the communications device. Moreover, the method includes adding the determined at least one new verification phrase to an enrollment phrase registry and storing the biometric data captured for the at least one new verification phrase in an enrollment data record of the user after successfully authenticating the user.