In today’s environment of heightened regulatory requirements and increasing risk of cardholder data breach, it is critical for merchants, payment processors, and acquirers to protect payment data anywhere it moves, anywhere it resides, and however it is used. In payment acceptance systems payment data is commonly left unprotected during the authorization and settlement processes. Payment data is also left unprotected during routine and necessary back-office business processes such as fraud screening, chargeback processing, and recurring payment processing. Common methods for protecting payment data are often inflexible, expensive, and difficult to implement.