'PCI' stands for Payment Card Industry and 'DSS' stands for Data Security Standards. This Standard includes requirements for any business that stores, processes or transmits payment cardholder data. The five major card brand networks (Visa Inc., MasterCard Worldwide, American Express, Discover Financial Services, and JCB) established the PCI DSS requirements. These requirements specify the framework for a secure payments environment. Failure to comply with PCI DSS requirements can result in fines and may also result in losing the ability to accept credit cards in your place of business.