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ISO 27001 Secure Development Policy Explained + Template

Last updated Sep 25, 2025

Author: Stuart Barker | ISO 27001 Expert and Thought Leader

The ISO 27001 Secure Development Policy sets out how you manage information security in your development lifecycle to protect the confidentiality, integrity and availability of data within applications.

What is it?

An ISO 27001 Secure Development Policy is a set of rules and guidelines that help you create software that’s safe and sound from the get-go. It’s part of the bigger ISO 27001 family, which is all about managing information security. This policy ensures that security isn’t just an afterthought but is woven into every step of your software-making process.

Applicability to Small Businesses, Tech Startups, and AI Companies

This policy is useful for businesses of all sizes, including small businesses, tech startups, and AI companies.

  • Small Businesses: You might think ISO 27001 is too much, but it’s really about being smart with your resources. It gives you a structured way to think about security from the very beginning, helping you avoid costly mistakes later on. It’s a strong signal of trustworthiness to your customers and partners, which can set you apart from competitors.
  • Tech Startups: Your reputation is everything. A single security incident could stop your growth cold. By following the ISO 27001 framework, you’re building a secure foundation that can handle rapid growth. It shows investors and potential clients that you’re a professional and responsible operation, which is a huge advantage.
  • AI Companies: You’re handling a massive amount of data, and that comes with unique risks. ISO 27001 helps you secure the data life cycle, from collection to storage and processing. It ensures you’re protecting sensitive training data and algorithms, which are at the core of your business. This isn’t just a good idea—it’s essential for responsible AI development.

ISO 27001 Secure Development Policy Template

The ISO 27001:2022 Secure Development Policy Template is designed to fast track your implementation and give you an exclusive, industry best practice policy template that is pre written and ready to go. It is included in the ISO 27001 toolkit.

You can find templates for an ISO 27001 Secure Development Policy online. These templates give you a head start. You can then change them to fit your specific business needs. Using a template can save you time and help you make sure you don’t miss anything important.

ISO 27001 Secure Development Policy Template

Why you need it

You need this policy because it’s way easier to build security in than to try and tack it on later. It helps you avoid costly mistakes, protects your reputation, and keeps your customers’ data safe. Plus, it shows everyone that you’re serious about security, which is a big plus for business.

When you need it

You need a secure development policy right from the start of your software journey. The earlier, the better! You’ll use it when you’re planning new features, coding, and even when you’re getting ready to launch your product. It’s a continuous process, not a one-time thing.

Who needs it?

Anyone who builds software needs this policy! This includes developers, project managers, and anyone involved in creating or maintaining your digital products. It’s a team effort to keep things secure.

Where you need it

You need this policy everywhere you create software. It’s for your office, for your remote workers, and for any tools or platforms you use for development. It’s a rulebook that follows you wherever your work takes you.

How to write it

Writing a good policy is all about keeping it simple and clear. You should explain the what, why, and how of secure development. Talk about things like testing your code, managing access to sensitive info, and how to handle security issues. Use easy-to-understand language so everyone can follow it.

Time needed: 1 hour and 30 minutes

How to write an ISO 27001 Secure Development Policy

  1. Create your version control and document mark-up

    ISO 27001 documents require version control of the author, the change, the date and the version as well as document mark up such as document classification.

  2. Write the ISO 27001 Secure Development Policy contents page

    Document Version Control
    Document Contents Page
    Secure Development Policy
    Purpose
    Scope
    Principle
    Segregation of Environments
    Secure Development Coding Guidelines
    Development Code Repositories
    Development Code Reviews
    Development Code Approval
    Testing
    Test Data
    Promoting Code to Production

  3. Write the ISO 27001 Secure Development Policy purpose

    The purpose of this policy is to ensure information security is designed and implemented within the development lifecycle.

  4. Write the ISO 27001 Secure Development Policy principle

    System development of bespoke company software solutions.
    All employees and third-party users.

  5. Write the ISO 27001 Secure Development Policy scope

    Secure software and system engineering principles and standards are implemented and tested.
    Information security and privacy are by design and default.

  6. Describe the segregation of environments

    Development, test, and production environments are separated and do not share common components.
    Development, test, and production environments are on separate networks.
    There is a segregation of administrative duties between development and test, and production.

  7. Explain the secure development coding guidelines

    Software is designed and developed based on industry secure coding guidelines for the coding technology and the Open Web Application Security Project (OWASP).
    The NCSC government guidelines for secure development are considered.
    The NIST White-paper on MITIGATING THE RISK OF SOFTWARE VULNERABILITIES BY ADOPTING AN SSDF are considered.

  8. Define the use of development code repositories

    Development code is stored in a secure code repository that enforces and meets the requirements of the access control policy and segregation of duty.
    Development code repositories enforce version control and appropriate version archiving.

  9. Explain the approach to development code reviews

    Code is reviewed prior to release by skilled personnel other than the code author / developer.
    Code is reviewed against the secure development coding guidelines.
    Code reviews employ manual and automated techniques.

  10. Describe development code approval

    Code is approved before being promoted into test or production.

  11. Define testing

    All pre-production testing occurs in a test environment.
    The test environment mirrors as far as possible the production environment.
    Application security testing is performed using manual and automated techniques.
    Testing is performed that as a minimum test for the OWASP top 10.
    External penetration testing is performed prior to initial release and then periodically or after a significant change.
    All public facing web applications are tested using manual or automated vulnerability security tools or methods at least annually or after a significant change.
    All vulnerabilities identified as part of the testing phase including penetration testing are corrected prior to promotion to production or managed via the risk management process.
    Test results including penetration testing are additionally reported to the Management Review Team.
    All penetration testing is conducted by an external specialist company.

  12. Give guidelines on the use of test data

    Production data is never used for testing or development.
    Card holder data is never used for testing or development.
    Personal data is never used for testing or development.
    If sensitive information is required as part of the testing process it is:
    – sanitised,
    – anonymised or
    – pseudo anonymised.

  13. Explain promoting code to production

    Code is promoted to production by approved personnel and is subject to the documented change control process.
    The production environment is backed up prior to the promotion of code to production to facilitate roll back for a failed change.
    Test data is removed before the application is promoted to production.
    No development files or test data are stored in the production environment.

How to implement it

Implementing the policy is the fun part! You’ll train your team on the new rules, set up security checks in your workflow, and make sure everyone knows their role in keeping things secure. You’ll also want to check in regularly to make sure the policy is working and make tweaks as needed.

Examples of using it for small businesses

Let’s say you’re a small online shop. Your policy might include simple rules like: always use strong passwords, test your website for security holes before going live, and never store customer credit card numbers on your server.

Examples of using it for tech startups

If you’re a startup building a new app, your policy could cover things like: using secure coding practices (like input validation), doing regular security reviews of your code, and setting up a way for users to report security bugs to you.

Examples of using it for AI companies

For an AI company, your policy is super important. It might include rules like: protecting the data you use to train your models, making sure your AI can’t be tricked into doing something bad, and keeping your AI’s secrets safe from competitors.

How the ISO 27001 toolkit can help

An ISO 27001 toolkit is like a toolbox full of pre-made documents and guides. It gives you a head start on creating your policy and other important security documents, saving you a ton of time and effort. It’s a great way to make sure you don’t miss anything.

ISO 27001 Toolkit

Information security standards that need it

This policy is a key part of ISO 27001, which is an international standard for managing information security. Other standards that need it include:

  • GDPR (General Data Protection Regulation)
  • CCPA (California Consumer Privacy Act)
  • DORA (Digital Operational Resilience Act)
  • NIS2 (Network and Information Security (NIS) Directive) 
  • SOC 2 (Service Organisation Control 2)
  • NIST (National Institute of Standards and Technology) 
  • HIPAA (Health Insurance Portability and Accountability Act)

List of relevant ISO 27001:2022 controls

The ISO 27001:2022 standard has specific controls that relate to secure development. Some of the most important ones include:

ISO 27001 Secure Development Policy Example

An example ISO 27001 Secure Development Policy:

ISO 27001 Secure Development Policy FAQ

What’s the main goal of a Secure Development Policy? 

The main goal is to make sure security is a core part of your software from the very beginning.

Is this policy only for big companies?

Nope! It’s for any size company that builds software.

Do I have to be an expert to write it?

No, you don’t! You can use templates and get help from experts if you need it.

How long does it take to write?

It can take anywhere from a few hours to a few weeks, depending on how detailed you want to be.

What happens if we don’t follow the policy? 

Not following it can lead to security breaches, lost data, and a damaged reputation.

Is this policy a one-time thing?

No, it’s a living document that you should review and update regularly.

How often should we review the policy? 

It’s a good idea to review it at least once a year.

What if my team doesn’t understand the policy?

You need to explain it in simple terms and offer training so everyone gets it.

Does this policy replace security tools? 

No, it works with them. The policy tells you how to use your tools wisely.

What’s the difference between a policy and a procedure?

A policy is a high-level rule, while a procedure is a step-by-step guide on how to follow that rule.

Is this just for web apps? 

No, it’s for any kind of software, including mobile apps and desktop programs.

How does this help my business?

 It protects your data, builds customer trust, and can save you from a lot of trouble later on.

What’s the first step to creating our policy? 

The first step is to decide who will be in charge of writing and implementing it.

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.