WikiFrameworksISO/IEC 27001:2022Legal, Statutory, Regulatory and Contractual Requirements

Legal, Statutory, Regulatory and Contractual Requirements

Updated: 2026-02-17

Plain English Translation

ISO 27001 Annex A.5.31 requires organizations to explicitly identify, document, and maintain an up-to-date list of all legal, statutory, regulatory, and contractual requirements related to information security. This involves creating a comprehensive ISO 27001 legal register that lists applicable laws (such as GDPR or HIPAA) alongside contractual obligations with customers and suppliers, and detailing the specific internal security controls deployed to satisfy each of those requirements.

Executive Takeaway

Ignorance of the law or contract terms is not a defense; maintaining a centralized register of legal and contractual obligations ensures you avoid regulatory fines and business liabilities.

ImpactHigh
ComplexityMedium

Why This Matters

  • Prevents severe regulatory fines, penalties, and legal action caused by non-compliance with regional or industry-specific laws
  • Ensures customer trust and limits financial liability by adhering strictly to agreed-upon information security contractual requirements

What “Good” Looks Like

  • A comprehensive compliance obligations register is maintained, mapping specific laws and contracts directly to internal ISMS controls (tools like WatchDog Security's Compliance Center can help maintain these mappings and track control coverage over time)
  • The legal register is formally reviewed annually and updated dynamically whenever legislative or major business changes occur (with changes logged and routed for assessment in tools like WatchDog Security's Risk Register to ensure updates trigger the right owners and actions)

It is an organizational control requiring an organization to identify, document, and keep up to date its approach to meeting all legal, statutory, regulatory, and contractual obligations relevant to information security.

An ISO 27001 legal register is a documented list of all compliance obligations affecting the ISMS. Auditors ask for it to verify that you clearly understand your legal landscape and have purposefully designed controls to meet those specific obligations. WatchDog Security's Compliance Center can be used to maintain the register, map obligations to controls, and show audit-ready status for each requirement.

You identify applicable laws by consulting with internal or external legal counsel, assessing the jurisdictions where you operate and store data, and reviewing industry-specific information security legal and regulatory requirements.

An ISO 27001 legal register template should include the name of the law or contract, the governing body, a summary of the compliance requirement, the internal owner, and a mapping to the specific ISMS controls implemented to satisfy it.

ISO 27001 contractual requirements encompass the exact security commitments agreed upon in SLAs, NDAs, and DPAs. Your ISMS must document how you technically and administratively fulfill these specific promises to customers and vendors. WatchDog Security's Vendor Risk Management can help catalog supplier obligations and track assessments, while WatchDog Security's Policy Management can track internal policy acceptance where contracts require specific user behaviors.

The legal statutory regulatory contractual requirements ISO 27001 must be formally reviewed at planned intervals, typically annually, or immediately whenever significant changes to the legal landscape or your business operations occur.

Typically, the Compliance Manager, Data Protection Officer (DPO), or CISO owns the ISO 27001 compliance obligations register, working in close collaboration with the organization's Legal department to interpret requirements.

Excellent ISO 27001 5.31 audit evidence examples include an up-to-date legal requirements register, signed customer DPAs, and management review meeting minutes demonstrating that changes in legislation have been analyzed. WatchDog Security's Compliance Center can help organize obligation-to-control mappings and evidence collection status, and WatchDog Security's Trust Center can support controlled sharing of relevant evidence with customers when contractual requirements require it.

They map out the requirements per jurisdiction within their legal register and generally implement universal baseline security controls that satisfy the strictest regulations, tailoring localized procedures only where strictly necessary.

Privacy laws can be integrated directly into your main ISO 27001 legal register example, provided you clearly map them to privacy-specific ISMS controls (like A.5.34) and associated data protection policies.

Keeping a legal and contractual obligations register current is hard because requirements change and ownership is often split across Legal, Security, and Procurement. WatchDog Security's Compliance Center can centralize the obligations register, map each requirement to ISO 27001 controls, and track updates and evidence status so reviews and audits are easier to run consistently.

Contractual security commitments often live across DPAs, SLAs, NDAs, and security addenda, which makes it easy to miss obligations during renewals or vendor onboarding. WatchDog Security's Vendor Risk Management can catalog vendors and their security requirements, capture assessment outcomes, and link contract-driven obligations to follow-up actions so teams can manage renewals and exceptions without relying on ad-hoc spreadsheets.

ISO-27001 A.5.31

"Legal, statutory, regulatory and contractual requirements relevant to information security and the organization's approach to meet these requirements shall be identified, documented and kept up to date."

VersionDateAuthorDescription
1.0.02026-02-17WatchDog Security GRC TeamInitial publication