ISO 27701: Privacy Information Management System Guide

ISO/IEC 27701 extends ISO 27001 and ISO 27002 to include privacy management requirements. It provides a framework for establishing, implementing, maintaining, and continuously improving a Privacy Information Management System (PIMS), bridging the gap between information security and data privacy.

What ISO 27701 Covers

The standard addresses privacy from both the PII controller and PII processor perspectives. Annex A provides controls specific to controllers (organizations that determine the purpose of processing), while Annex B covers processor-specific controls (organizations that process PII on behalf of controllers).

Key areas include lawful basis for processing, consent management, data subject rights, privacy impact assessments, cross-border data transfer safeguards, breach management, and privacy by design principles.

Who Needs ISO 27701

Any organization that processes personal data and wants a structured, certifiable privacy management system should consider ISO 27701. It is particularly valuable for companies subject to GDPR, as Annex D provides a detailed mapping between ISO 27701 controls and GDPR articles.

SaaS companies, data processors, healthcare organizations, and financial institutions benefit most. The standard is also increasingly requested by enterprise customers who want assurance that their vendors manage privacy systematically.

Relationship to GDPR

While ISO 27701 is not a GDPR certification, it is the closest thing available. The European Data Protection Board has recognized the standard's relevance, and organizations use ISO 27701 certification as evidence of GDPR compliance efforts. The mapping in Annex D covers Articles 5 through 49 of GDPR.

Implementation Approach

1. Prerequisite — Achieve ISO 27001 certification (ISO 27701 extends the ISMS)
2. Data mapping — Inventory all PII processing activities
3. Gap analysis — Compare current privacy practices against Annex A and B controls
4. PIMS integration — Extend your ISMS to incorporate privacy objectives and controls
5. Privacy risk assessment — Identify and treat privacy-specific risks
6. Audit preparation — Extend your ISO 27001 audit scope to include PIMS

Cost Considerations

For ISO 27001-certified organizations, the incremental cost ranges from $25,000 to $60,000 for mid-size companies. Primary cost drivers include data mapping exercises, privacy impact assessments, policy development, and extended audit scope. Organizations with complex data processing activities or multinational operations trend toward the higher end.