In this ultimate how to implement guide to ISO 27001 Annex A 8.30 Outsourced Development, 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 Outsourced Development Implementation Checklist
- 1. Define Security Requirements in Contracts
- 2. Mandate a Software Bill of Materials (SBOM)
- 3. Implement Enforced Code Scanning (SAST)
- 4. Segregate Development Environments
- 5. Anonymise Test Data
- 6. Retain Code Ownership and Repo Control
- 7. Define Acceptance Testing Criteria
- 8. Control Access via Federation or VPN
- 9. Audit Commit Logs for Hardcoded Secrets
- 10. Conduct Post-Engagement Revocation
- ISO 27001 Annex A 8.30 SaaS / GRC Platform Implementation Failure Checklist
Implementing ISO 27001 Annex A 8.30 involves establishing strict governance over outsourced software development to mitigate supply chain risks. This requires enforcing contractual security requirements, automated code scanning (SAST), and mandatory Software Bill of Materials (SBOM) delivery. The primary business benefit is ensuring code integrity and preventing third-party security vulnerabilities from entering production systems.
ISO 27001 Outsourced Development Implementation Checklist
Use this implementation checklist to achieve compliance with ISO 27001 Annex A 8.30. This control requires that organisations supervise and monitor outsourced software development to ensure that security requirements are met and tested.
1. Define Security Requirements in Contracts
Control Requirement: Security requirements must be legally binding and explicitly defined before development begins.
Required Implementation Step: Update your Master Services Agreement (MSA) to include a specific “Secure Development Schedule”. This must mandate adherence to the OWASP Top 10, prohibit hardcoded credentials, and define specific encryption standards (e.g., AES-256). Do not accept generic “we will use best practices” clauses.
Minimum Requirement: The signed contract specifically lists the security standards the vendor must code against.
2. Mandate a Software Bill of Materials (SBOM)
Control Requirement: You must know the origin of all code and libraries to manage supply chain risk.
Required Implementation Step: Require the outsourced team to deliver a comprehensive SBOM (in CycloneDX or SPDX format) with every release. Use this to scan for known vulnerabilities (CVEs) in the open-source libraries they have imported into your project.
Minimum Requirement: No code is accepted without a list of all third-party dependencies and versions.
3. Implement Enforced Code Scanning (SAST)
Control Requirement: Outsourced code must be free from known technical vulnerabilities.
Required Implementation Step: Configure your repository (e.g., GitHub, GitLab) to reject pull requests from external developers unless they pass an automated Static Application Security Testing (SAST) scan (e.g., SonarQube, Snyk). Block the merge button until High and Critical issues are resolved.
Minimum Requirement: Automated scanners block code commits containing critical vulnerabilities.
