ISO/TR 9564-4:2004

Banking — Personal Identification Number (PIN) management and security — Part 4: Guidelines for PIN handling in open networks

ISO/TR 9564-4:2004 provides guidelines for personal identification number PIN handling in open networks, presenting finance industry best-practice security measures for PIN management and the handling of financial card originated transactions in environments where issuers and acquirers have no direct control over management, or where no relationship exists between the PIN entry device and the acquirer prior to the transaction.