PCI PIN is a Security Standard outlined by the PCI Council on payment security, to protect PIN data. It provides a set of requirements for secure management, processing, and transmission of PIN data during online and offline card transactions. A total of 33 requirements outlined in 7 logical related groups called Control Objectives ensures PIN data is not compromised during the process of electronic payment especially during key exchange process. PCI PIN security mainly focuses on protecting all types of POS (point-of-sale) devices and terminals, including attended or manned by merchants, or Unattended Payment Terminals (UPT) devices such as parking payment automated machines. PCI Security Standards are not just applicable to online transactions but also to offline payment card transaction processed at ATMs and attended / unattended POS terminals.