How much do ISO 27001 and SOC 2 overlap?

ISO 27001 and SOC 2 have approximately 65% control overlap. Key overlap areas include risk management (ISO risk treatment ↔ SOC 2 CC3), access control (Annex A.8.2-8.5 ↔ CC6), incident management (A.5.24-5.28 ↔ CC7.3-7.5), change management (A.8.32 ↔ CC8.1), and vendor management (A.5.19-5.22 ↔ CC9.2). Parallel implementation can save about 40% effort compared to doing each framework separately.

Do ISO 27001 and ISO 42001 overlap?

Yes, ISO 27001 and ISO 42001 have about 60% overlap since both use a similar High Level Structure (HLS). Key overlap areas: risk management (ISO 27001 Clause 6 ↔ ISO 42001 Clause 6), information security controls (Annex A ↔ ISO 42001 Annex A), incident management, and supplier management. Organizations with ISO 27001 can extend to ISO 42001 with about 40% additional effort.

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