CISP: Visa's Security Standard for Protecting Cardholder Data

CISP stands for 'Cardholder Information Security Program.' It is a set of security standards developed by Visa to protect cardholder data and prevent fraud. The program requires merchants and service providers who store, process, or transmit cardholder information to comply with certain security requirements, including encryption, access controls, and regular security testing. Compliance with CISP is mandatory for all entities that accept Visa payments.