A system and method for securing financial information in payment instruments including generating a pseudorandom number sequence, generating an activation code, including a unique pseudorandom number of the sequence with each payment instrument of a plurality of payment instruments and issuing the plurality of payment instruments with the activation code to a customer. The activation code is associated with customer identifying information and each unique pseudorandom number of the sequence included with each payment instrument of the plurality of payment instrument. The plurality of payment instruments is activated with the activation code. A received payment instrument of the plurality of payment instruments is authenticated if the customer and the unique pseudorandom number of the sequence included on the received payment instrument are authenticated and if the plurality of payment instruments are activated.