In this ultimate how to implement guide to ISO 27001 Annex A 8.25 Secure Development Life Cycle, you will learn directly from an ISO 27001 Lead Auditor:
- The requirement of the control
- The required implementation steps
- The minimum requirement
I am Stuart Barker, the ISO 27001 Lead Auditor and author of the Ultimate ISO 27001 Toolkit.
Using over 30 years of industry experience across hundreds of audits, I’m giving you the exact templates, walkthroughs, and practical examples you need to achieve ISO 27001 certification.
Table of contents
- ISO 27001 Annex A Secure development life cycle Implementation Checklist
- 1. Define a Secure Development Policy
- 2. Mandate Secure Coding Training
- 3. Implement Threat Modelling
- 4. Enforce Version Control Security
- 5. Standardise Local Development Tools
- 6. Automate Dependency Analysis (SCA)
- 7. Integrate Static Application Security Testing (SAST)
- 8. Secure the Build Environment
- 9. Establish Security Acceptance Criteria
- 10. Separate Development and Production Environments
- ISO 27001 Annex A 8.25 SaaS / GRC Platform Implementation Failure Checklist
Implementing ISO 27001 Annex A 8.25 involves establishing a Secure Development Lifecycle (SDLC) that enforces security checkpoints at every stage of engineering. This requires integrating threat modelling, automated code scanning (SAST), and secure coding standards directly into the build pipeline. The primary business benefit is **preventing software vulnerabilities from reaching production** and reducing remediation costs.
ISO 27001 Annex A Secure development life cycle Implementation Checklist
Use this implementation checklist to achieve compliance with ISO 27001 Annex A 8.25. This control requires that rules for secure development of software and systems are established and applied throughout the entire development lifecycle.
1. Define a Secure Development Policy
Control Requirement: A formal set of rules for secure development must be established across the organisation.
Required Implementation Step: Draft and publish a “Secure Engineering Standard” document that mandates the specific security checkpoints (e.g., Threat Modelling, SAST, Manual Review) required for every project phase. Do not rely on generic “best practice” statements; specify the exact tools and gates required.
Minimum Requirement: A signed policy document exists that developers can reference for mandatory security gates.
2. Mandate Secure Coding Training
Control Requirement: Developers must be competent in writing secure code.
Required Implementation Step: Assign mandatory, role-specific training modules (focusing on the OWASP Top 10 or SANS Top 25) to all engineering staff annually. Verify competence by requiring a passing score on a practical coding assessment, not just a multiple-choice quiz.
Minimum Requirement: HR records show 100% of developers have completed secure coding training in the last 12 months.
3. Implement Threat Modelling
Control Requirement: Security risks must be identified during the design phase, not after deployment.
Required Implementation Step: Schedule a mandatory “Whiteboarding” session using the STRIDE methodology for every major feature release. Document the potential attack vectors identified and the specific mitigations (e.g., “Implement Rate Limiting on API endpoint”) agreed upon.
Minimum Requirement: A diagram or document listing potential threats exists for every new major component.
