Category Archives: Definitions

Area of computer system network that possesses cardholder data or sensitive authentication data and those systems and segments that directly attach or support cardholder processing, storage, or transmission.  Adequate network segmentation, which isolates systems that store, process, or transmit cardholder data from those that do not, may reduce the scope of the cardholder data environment and thus the scope of [...]

Primary Account Number is the payment card number (credit or debit) that identifies the issuer and the particular cardholder account. Also called Account Number

Full magnetic stripe or the PAN plus any of the following: Cardholder name Expiration date Service code