1. A method comprising: providing a party communicating with a voice response system with one or more digital prompts; capturing speech spoken by the party in response to the one or more digital prompts; creating, with a processor, a voice model of the party, the voice model being created by processing the speech; and verifying an identity of the party by applying the voice model to speech spoken by the party during a subsequent communication between the party and the voice response system, wherein the voice model is created without notifying the party.