The Payment Card Industry Data Security Standard

The standard serves those who work with and are associated with payment cards. This includes: merchants of all sizes, financial institutions, point-of-sale vendors, and hardware and software developers who create and operate the global infrastructure for processing payments.
Helping merchants and financial institutions understand and implement standards for security policies, technologies and ongoing processes that protect their payment systems from breaches and theft of cardholder data.
Helping vendors understand and implement standards for creating secure payment solutions.