ISO 27001 Annex A 5.31 Audit Checklist

Auditing ISO 27001 Annex A 5.31 is the systematic verification of an organization’s adherence to jurisdictional and contractual mandates. The Primary Implementation Requirement is a maintained legal register, ensuring the Business Benefit of total regulatory alignment, avoided litigation, and the protection of essential intellectual property assets.

1. Comprehensive Legal and Regulatory Register Verified

Verification Criteria: A maintained register identifies all applicable legislation, statutory requirements, and regulatory obligations relevant to the ISMS scope and jurisdiction.

Required Evidence: Legal and Regulatory Register (or Compliance Matrix) showing specific acts (e.g., UK Data Protection Act 2018, NIS2 Directive) and their impact on security controls.

Pass/Fail Test: If the organisation cannot produce a list of specific laws and regulations applicable to its industry and geography, mark as Non-Compliant.

2. Contractual Security Obligation Inventory Confirmed

Verification Criteria: An inventory or repository exists that extracts and tracks specific information security clauses from client and vendor contracts.

Required Evidence: Contractual Obligations Tracker or a centralised CRM/Legal folder containing security annexes from active Master Service Agreements (MSAs).

Pass/Fail Test: If security requirements from a major client contract are not reflected in the organisation’s internal control objectives, mark as Non-Compliant.

3. Intellectual Property (IP) Protection Controls Validated

Verification Criteria: Technical and organisational controls are implemented to protect intellectual property in accordance with legal and contractual requirements.

Required Evidence: Software asset register showing license validity, and Data Loss Prevention (DLP) logs protecting proprietary source code or designs.

Pass/Fail Test: If the organisation is using unlicensed commercial software or lacks controls to prevent unauthorised IP exfiltration, mark as Non-Compliant.

4. Protection of Records (Retention and Disposal) Verified

Verification Criteria: Records are protected from loss, destruction, and falsification in accordance with statutory, regulatory, and business requirements.

Required Evidence: Document Retention Schedule and evidence of secure disposal (e.g., certificates of destruction) for records that have exceeded their legal hold.

Pass/Fail Test: If sensitive records are retained indefinitely without a legal or business justification, mark as Non-Compliant.

5. Data Privacy and PII Protection Compliance Confirmed

Verification Criteria: Personal data is protected according to relevant privacy legislation (e.g., GDPR) and contractual privacy mandates.

Required Evidence: Records of Processing Activities (RoPA), Data Protection Impact Assessments (DPIAs), and Privacy Notices.

Pass/Fail Test: If the organisation processes high-risk PII but has not conducted a DPIA or lacks a designated Data Protection Lead, mark as Non-Compliant.

6. Cryptographic Control Regulatory Alignment Verified

Verification Criteria: The use of cryptography complies with all relevant agreements, laws, and regulations (including import/export restrictions).

Required Evidence: Cryptographic Policy and technical configuration logs showing the use of approved algorithms (e.g., AES-256) and key management practices.

Pass/Fail Test: If cryptographic implementations use prohibited algorithms or violate the import/export laws of the jurisdictions in which the organisation operates, mark as Non-Compliant.

7. Independent Compliance Review Records Identified

Verification Criteria: Regular, independent reviews of the organisation’s compliance with legal and contractual requirements are performed.

Required Evidence: External audit reports, legal counsel opinions, or internal audit reports specifically focused on legal/contractual compliance.

Pass/Fail Test: If the organisation has not conducted a formal compliance review of its legal and contractual obligations within the last 12 months, mark as Non-Compliant.

8. Management Accountability for Legal Compliance Confirmed

Verification Criteria: Senior management demonstrates accountability for ensuring that the organisation meets its legal and regulatory security obligations.

Required Evidence: Management Review Meeting (MRM) minutes showing “Legal and Regulatory Compliance” as a discussed and reviewed agenda item.

Pass/Fail Test: If top management has not reviewed the compliance status of the ISMS against the legal register in the current audit cycle, mark as Non-Compliant.

9. Technical Access to Legal Information Validated

Verification Criteria: Personnel responsible for compliance have access to up-to-date information regarding changes in legislation and regulations.

Required Evidence: Subscriptions to legal update services, membership in professional bodies (e.g., IAPP, ISACA), or records of legal briefings from external counsel.

Pass/Fail Test: If the organisation is unaware of a major regulatory change (e.g., NIS2 or a GDPR update) that has already come into effect, mark as Non-Compliant.

10. Transborder Data Transfer Controls Verified

Verification Criteria: Information transfers across national borders comply with relevant privacy and data protection legislation.

Required Evidence: Standard Contractual Clauses (SCCs), International Data Transfer Agreements (IDTAs), or adequacy decision records for sampled transfers.

Pass/Fail Test: If data is being transferred to a third country without a valid legal transfer mechanism or risk assessment, mark as Non-Compliant.

About the author