Technical comparison between ISO 27001 (ISMS) and ISO 27701 (PIMS). Extension relationship, additional controls, PII roles, and joint implementation strategy.
ISO 27701 is not a standalone standard: it is an extension of ISO 27001 that adds specific requirements for managing personally identifiable information (PII). Published in 2019, it transforms the ISMS into a Privacy Information Management System (PIMS). This comparison clarifies the relationship between both standards and the path for organizations needing to protect both information security and personal data privacy.
ISO 27701 does not replace ISO 27001 but extends it. Any organization processing personal data significantly should consider ISO 27701 as a natural extension of its ISMS. In the Latin American context, where data protection laws are rapidly strengthening, the ISO 27001 + ISO 27701 combination provides a solid foundation for demonstrating regulatory compliance and privacy due diligence.
No. ISO 27701 is an extension requiring an implemented ISO 27001 ISMS as prerequisite. ISO 27701 certification is only issued as an extension of the existing ISO 27001 certificate. If the organization lacks ISO 27001, both must be implemented jointly.
It does not guarantee it, but provides a structured framework that significantly facilitates demonstrating compliance. ISO 27701 includes mappings with GDPR articles and establishes controls aligned with its requirements. Data protection authorities recognize the certification as evidence of due diligence.
With a mature ISO 27001 ISMS, extending to ISO 27701 requires 3 to 6 additional months. The main effort focuses on mapping personal data flows, implementing specific privacy controls, designating a DPO, and adapting incident management processes to include privacy breaches.
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