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The Payment Card Industry Data Security Standard (PCI DSS) has been in place since 2004, with PCI DSS 4.0 first rolled out in 2022 and going into full effect in March 2025. The overarching goal is simple, to protect cardholder data. In accordance with PCI DSS Requirement 4.2, the use of end user messaging technologies like email for capturing, transmitting, or storing credit card information is strictly prohibited.
While the database issues and solutions are well known, the real challenge is around unstructured data, where credit card information finds its way into email and documents, these are then transferred around and outside the organization creating unnecessary risk.
Find out more in our guide to PCI Compliance Best Practices.