PCI Data Security Standard (PCI DSS): The PCI DSS applies to all entities that store, process, and/or transmit cardholder data. It covers technical and operational system components included in or connected to cardholder data. If you accept or process payment cards, PCI DSS applies to you.
PIN Transaction Security (PTS) Requirements: The PCI PTS is a set of security requirements focused on characteristics and management of devices used in the protection of cardholder PINs and other payment processing related activities. The PTS standards include PIN Security Requirements, Point of Interaction (POI) Modular Security Requirements, and Hardware Security Module (HSM) Security Requirements.