PCI-DSS, ISO 27001, 27701 and 27018: How Four Security Standards Work Together

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Companies handling card payments, customer data, and cloud infrastructure often face simultaneous compliance demands from four distinct security frameworks: PCI-DSS, ISO 27001, ISO 27701, and ISO 27018. PCI-DSS is a mandatory industry standard created in 2004–2006 by major card networks — Visa, Mastercard, Amex, Discover, and JCB — to unify fragmented security requirements following large-scale card data breaches. Unlike the three ISO standards, PCI-DSS is not an international norm but a contractual obligation enforced by card networks and acquirers, with audit rigor tied to transaction volume. ISO 27001, ISO 27701, and ISO 27018 all belong to the ISO/IEC 27000 family and are designed to complement each other, covering information security management, privacy management, and personal data protection in public cloud environments respectively. Security teams often treat these as four separate projects, but significant overlap means work done for one standard frequently satisfies requirements of the others.

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