US Patent 8194827 Secure voice transaction method and system

A security method and system. The method includes receiving by a computing system, a telephone call from a user. The computing system comprises an existing password/passphrase and a pre-recorded voice sample associated with the user. The computing system prompts the user to enter a password/passphrase using speech. The computing system receives speech data comprising a first password/passphrase from the user. The computing system converts the speech data to text data. The computing system first compares the text data to the first password/passphrase and determines a match. The computing system compares the speech data to the pre-recorded voice sample to determine a result indicating whether a frequency spectrum associated with the speech data matches a frequency spectrum associated with the pre-recorded voice sample. The computing system transmits the result to the user.