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ISO 27001 Security Testing in Development and Acceptance Explained

Last updated Jul 5, 2025

Author: Stuart Barker | ISO 27001 Expert and Thought Leader


ISO 27001 Security Testing in Development and Acceptance with compliance guidance and ISO 27001 templates. Everything you need to know for ISO 27001 certification.

ISO 27001 Security Testing in Development and Acceptance

Security Testing in Development and Acceptance emphasises the importance of rigorously testing software before its release to the production environment to ensure that it meets all established security requirements. By proactively identifying and mitigating vulnerabilities during the development lifecycle, you can significantly reduce the risk of security breaches, data loss, and other adverse consequences

Furthermore this is a preventive measure, helping to identify and mitigate security vulnerabilities early in the development lifecycle.

Who owns it?

The Information Security Officer, in close collaboration with domain experts, is responsible for:

  • Establishing and maintaining effective security testing controls and procedures.
  • Ensuring the proper implementation and oversight of these security testing activities.
ISO 27001 Toolkit

Compliance Guidance

The following is compliance guidance for Security Testing in Development and Acceptance.

Define and Integrate Security Testing

Develop a comprehensive security testing strategy aligned with the overall development process.
Integrate security testing throughout the entire SDLC.
Provide training to development teams on security best practices.

Conduct Thorough Testing

Perform regular code reviews to identify and address vulnerabilities.
Utilise automated vulnerability scanning tools.
Conduct penetration testing to simulate real-world attacks.

Promote Secure Development Practices

Encourage and enforce secure coding practices.
Leverage secure development frameworks and libraries.

Secure Configuration Management

Implement a secure configuration management process to ensure systems and applications are configured correctly.

Acceptance Testing for Security

Integrate security testing into the acceptance testing process.

Continuous Improvement

Continuously monitor and analyse security testing activities.
Identify and address areas for improvement.

Documentation and Communication

Document all security testing activities and communicate results effectively to stakeholders.

Addressing Challenges

The checklist also addresses common challenges such as:

  • Resource constraints: Ensuring adequate resources and expertise for security testing.
  • False positives: Dealing with false alarms from vulnerability scanning tools.
  • Keeping up-to-date: Staying current with the latest vulnerabilities and security threats.
  • Developer motivation: Encouraging developer participation in code reviews.
  • By addressing these challenges and implementing the recommendations outlined in the checklist, organisations can significantly improve their software security posture and reduce the risk of security breaches.

Supplementary Guidance

Diverse Testing Needs: Different types of testing (e.g., functional, performance) require specific environments with unique configurations to accurately simulate real-world scenarios.

Virtualisation: Utilising virtual environments allows for flexible and efficient creation of various testing scenarios.

Monitoring and Maintenance: Regular monitoring and testing of the test environments themselves is crucial to ensure their effectiveness. This includes monitoring the tools and technologies used within these environments.

Layered Testing: The need for multiple layers of testing (meta-testing) should be evaluated based on the sensitivity of the systems and data involved.

Key takeaway: By establishing and effectively managing diverse test environments, organisations can significantly improve the quality, reliability, and security of their software products.

ISO 27001 Secure Development Policy Template

The following is a fully ISO 27001 compliant ISO 27001 Secure Development Policy Template.

ISO 27001 Secure Development Policy Template

Further Reading

ISO 27001 Annex A 8.29 Security Testing in Development and Acceptance specifically addresses the requirements of application security.

ISO 27001 Secure Development Policy Template

Stuart Barker
ISO 27001 Expert and Thought Leader

ISO 27001 Toolkit Business Edition

About the author

Stuart Barker is an information security practitioner of over 30 years. He holds an MSc in Software and Systems Security and an undergraduate degree in Software Engineering. He is an ISO 27001 expert and thought leader holding both ISO 27001 Lead Implementer and ISO 27001 Lead Auditor qualifications. In 2010 he started his first cyber security consulting business that he sold in 2018. He worked for over a decade for GE, leading a data governance team across Europe and since then has gone on to deliver hundreds of client engagements and audits.

He regularly mentors and trains professionals on information security and runs a successful ISO 27001 YouTube channel where he shows people how they can implement ISO 27001 themselves. He is passionate that knowledge should not be hoarded and brought to market the first of its kind online ISO 27001 store for all the tools and templates people need when they want to do it themselves.

In his personal life he is an active and a hobbyist kickboxer.

His specialisms are ISO 27001 and SOC 2 and his niche is start up and early stage business.