Free preview: ISO 27001 to SOC 2 Control Crosswalk Guide

Introduction and How to Use This Guide

ISO/IEC 27001:2022 and SOC 2 examine substantially the same security practices through different lenses. ISO 27001 certification is an accredited certification body's confirmation that [Company Name] operates a risk-based management system; SOC 2 is an independent CPA's opinion on whether controls meet the Trust Services Criteria relevant to the services [Company Name] provides to customers. Running two separate compliance programs duplicates work, creates contradictory documentation, and increases audit cost. This guide is the authoritative internal reference for treating the two frameworks as one program.

Control owners must use the crosswalk tables in this guide to identify every framework requirement a given control activity supports before designing the activity or its evidence. The [Role, e.g., Compliance Lead] must use this guide when scoping audit requests, preparing evidence packages, and assessing the dual-framework impact of any proposed control change.

Crosswalk Methodology

The crosswalk was built control by control, not by topic label. Two requirements are mapped only when a single, concretely described control activity at [Company Name] would generate evidence acceptable to both an ISO 27001 certification auditor and a SOC 2 service auditor. Where a topic appears in both frameworks but the testable obligations differ, the mapping is recorded as partial and the gap is described in the notes column.

Framework Structures at a Glance

Personnel using this guide must understand the structural differences between the frameworks, because those differences determine how shared controls are documented and tested. The table below summarizes the attributes that most often cause confusion during dual audits.

Organizational Controls (Annex A.5) Crosswalk

Theme 5 covers governance, policy, asset and access direction, suppliers, incidents, continuity, and legal compliance, and maps across nearly every SOC 2 common criteria series. Control owners must consult the notes column before assuming a single evidence set is sufficient.