Crosswalk Library/SOC 2 ↔ ISO 27001
ELDR Institute · Governance Crosswalk

Map AICPA SOC 2 Trust Services Criteria to ISO/IEC 27001:2022 Annex A controls to enable organizations pursuing both attestations to create unified control documentation and audit packages.

Scope & Applicability

AICPA Trust Services Criteria (CC1-CC9) mapped to ISO 27001:2022 Annex A. Applicable to technology companies and cloud service providers who require both SOC 2 Type II attestation and ISO 27001 certification.

Crosswalk Overview

SOC 2 and ISO 27001 address substantially the same security control domains — both cover access control, change management, risk assessment, incident response, monitoring, and vendor management. The documentation formats differ significantly: SOC 2 requires point-in-time evidence for the attestation period; ISO 27001 requires evidence of a functioning ISMS with documented continual improvement.

Areas of Overlap
SOC 2 ISO 27001
SOC 2 CC6 (Logical & Physical Access)↔ISO 27001 A.5.15-A.5.18, A.7
SOC 2 CC7 (System Operations)↔ISO 27001 A.8.16, A.8.17
SOC 2 CC8 (Change Management)↔ISO 27001 A.8.32
SOC 2 CC9 (Risk Mitigation)↔ISO 27001 Clauses 6.1, A.5.19-A.5.23
Key Differences
Attestation vs. Certification
SOC 2 produces an attestation report by a licensed CPA firm. ISO 27001 produces a certification by an accredited certification body. Only ISO 27001 is internationally recognized as a certification.
Time Period
SOC 2 Type II covers a defined period (typically 12 months) — evidence must exist throughout. ISO 27001 has no equivalent period constraint.
Scope Definition
SOC 2 scope is defined by service commitments. ISO 27001 scope is defined by the ISMS boundary (Clause 4.3). The scopes may differ materially.
Management Assertion
SOC 2 requires management's written assertion about control effectiveness. ISO 27001 requires management review minutes.
Privacy Criteria
SOC 2 Privacy criteria (P series) address personal information handling. ISO 27001 addresses privacy through policy but lacks equivalent privacy criteria.
Evidence Requirements
SOC 2 Evidence
◆System Description
◆Management Assertion
◆Control environment evidence (CC1-CC9)
◆Testing evidence throughout the attestation period
◆Exception documentation
ISO 27001 Evidence
◆ISMS Scope Document
◆Statement of Applicability
◆Risk Assessment and Treatment Plan
◆Management Review Minutes
◆Internal Audit Report
◆Corrective Action Records
Control Mapping Table

Selected high-overlap control mappings. Full crosswalk documentation available on request.

SOC 2 Control ISO 27001 Control
CC1.1 COSO Principle 1 — Ethics
→
ISO 27001 A.5.1, A.6.2
CC6.1 Logical Access Controls
→
ISO 27001 A.5.15, A.5.16, A.8.2
CC6.2 New Access Registration
→
ISO 27001 A.5.16, A.5.18
CC6.3 Role-Based Access
→
ISO 27001 A.5.15, A.8.2
CC7.1 Vulnerability Detection
→
ISO 27001 A.8.8
CC7.2 Anomaly Detection
→
ISO 27001 A.8.16
CC8.1 Change Management
→
ISO 27001 A.8.32
CC9.2 Third-Party Risk
→
ISO 27001 A.5.19-A.5.23
Related Institute Research
ELDR Advisory

Multi-framework programs
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