System and method for tracking fraudulent electronic transactions using voiceprints

A system for detecting fraudulent transactions using voice data, the system comprising:

• a module configured to compare a received voice signal against a database of known fraudulent voice signatures;
• a module configured to deny the caller's transaction if the voice signal substantially matches the database of known fraudulent voice signatures;
• and
• a module configured to add the caller's voice signal to the database of known fraudulent voice signatures if the voice signal is not verified by a separate speaker verification database and received additional information is not verified.

A computer readable medium storing a computer program having instructions for detecting fraudulent transactions using voice data, the instructions comprising:

• comparing a received voice signal against a database of known fraudulent voice signatures;
• denying the caller's transaction if the voice signal substantially matches the database of known fraudulent voice signatures;
• and
• adding the caller's voice signal to the database of known fraudulent voice signatures if the voice signal is not verified by a separate speaker verification database and received additional information is not verified.