ISO 42001 vs ISO 27001: how AI governance and information security differ
The short answer is that ISO 27001 and ISO 42001 serve different purposes. ISO 27001 is the internationally recognised standard for managing information security through an Information Security Management System (ISMS). ISO 42001 is the first international standard for managing artificial intelligence through an AI Management System (AIMS). While both help organisations manage risk, ISO 27001 does not explicitly cover AI governance.
Rather than competing standards, ISO 27001 and ISO 42001 are designed to work together. Organisations that develop, deploy or use AI can build on the governance, leadership and risk management practices established through ISO 27001, while using ISO 42001 to address the additional challenges associated with responsible AI, transparency and oversight.
In this guide, we’ll compare ISO 42001 vs ISO 27001, explain where they differ, where they overlap, and help you understand when your organisation may benefit from one standard, or both.
A Brief Overview
For most organisations, the decision isn’t about choosing between ISO 42001 and ISO 27001. They address different challenges and are designed to complement one another. ISO 27001 provides a framework for managing information security through an Information Security Management System (ISMS), while ISO 42001 provides a framework for governing the responsible development, deployment and use of artificial intelligence through an AI Management System (AIMS).
Although their objectives differ, both standards follow the same high-level ISO management-system structure, making them straightforward to integrate. Organisations that already have ISO 27001 in place often find they have a strong foundation for implementing ISO 42001, while businesses adopting AI can strengthen their governance by using both standards together.
ISO 42001 vs ISO 27001 at a Glance
The table below highlights the key differences between the two standards. While both are management system standards, they focus on different areas of organisational governance and are designed to work alongside one another rather than act as alternatives.
While ISO 27001 helps organisations protect information and manage information security risks, ISO 42001 introduces governance specifically for artificial intelligence. For organisations using AI, the two standards provide complementary frameworks that can be implemented together to support stronger governance and risk management.
What is ISO 27001?
ISO 27001 is the internationally recognised standard for information security management. It provides organisations with a structured framework for identifying, assessing and managing information security risks through an Information Security Management System (ISMS).
The standard includes a set of recognised information security controls within Annex A, covering areas such as access control, incident management, secure development, supplier relationships and business continuity. Organisations seeking ISO 27001 certification are independently assessed by an accredited certification body to confirm that their ISMS meets the requirements of the standard and is operating effectively.
ISO 27001 is well suited to organisations of all sizes that need to protect sensitive information, demonstrate a recognised approach to information security and meet customer, regulatory or contractual requirements. While it provides a strong foundation for managing information security, it does not address the wider governance of artificial intelligence, which is the role of ISO 42001.
What is ISO 42001?
Published in 2023, ISO 42001 is the world’s first international standard for an AI Management System (AIMS). It provides organisations with a structured framework for governing the responsible development, deployment and use of artificial intelligence, helping to ensure AI systems are managed consistently throughout their lifecycle.
ISO 42001 focuses on areas such as AI governance, transparency, accountability, risk management and human oversight. Rather than concentrating solely on technical performance, the standard helps organisations establish policies, responsibilities and processes that support the responsible use of AI while identifying and managing AI-specific risks.
Organisations seeking ISO 42001 certification are independently assessed to demonstrate that their AI Management System meets the requirements of the standard. ISO 42001 is particularly well suited to organisations that develop AI products, deploy AI within their operations, or procure AI solutions from third parties. As the adoption of artificial intelligence continues to grow, it provides a recognised framework for demonstrating responsible AI governance to customers, regulators and other stakeholders.
ISO 42001 vs ISO 27001: The Key Differences
Although both standards follow the same ISO management-system approach, they address different organisational challenges. Understanding where they differ makes it easier to identify which standard your organisation needs and whether implementing both would provide greater value.
The Risks They Address
ISO 27001 is designed to manage information security risks such as unauthorised access, data breaches, cyber threats and the loss or compromise of sensitive information.
ISO 42001 addresses AI-specific risks, including bias, lack of transparency, inappropriate use, unintended outcomes, accountability and the governance challenges associated with deploying AI systems responsibly.
The Controls and Annexes
Both standards provide structured frameworks for managing risk, but they do so in different ways. ISO 27001 includes Annex A, which contains recognised information security controls covering areas such as access control, supplier relationships and incident management. ISO 42001 introduces controls and guidance focused on AI governance, helping organisations establish appropriate oversight, define responsibilities and manage AI-related risks throughout the lifecycle of their systems.
Why ISO 42001 and ISO 27001 Work Well Together
ISO 42001 and ISO 27001 have different objectives, but they share the same Annex SL management-system structure. This means organisations can integrate the two standards, building on existing processes and structures rather than creating separate management systems.
Both standards require leadership, governance, risk management, internal audits and continual improvement. Organisations that already have ISO 27001 certification often find they have many of the management processes needed to support an AI Management System (AIMS), making ISO 42001 implementation more efficient and reducing duplicated effort.
Who Needs ISO 42001 (And When)?
Not every organisation needs ISO 42001 today. However, for businesses developing, deploying or relying on artificial intelligence, it is becoming an increasingly valuable way to demonstrate responsible AI governance and prepare for evolving regulatory and customer expectations.
ISO 42001 is particularly well suited to:
- Organisations developing AI products or services.
- AI software companies and technology providers.
- Organisations deploying AI within their own operations.
- Businesses procuring and managing third-party AI solutions.
- Organisations operating in highly regulated sectors.
- Businesses responding to customer questions about AI governance and responsible AI.
One of the key drivers behind the growing interest in ISO 42001 is the EU AI Act, which is increasing the focus on AI governance, accountability and risk management. While ISO 42001 certification is not a requirement under the legislation, it provides organisations with a recognised framework for establishing many of the governance processes expected of organisations using artificial intelligence responsibly.
Adoption of ISO 42001 is still at an early stage, but customer expectations are evolving quickly. Organisations that establish an AI Management System now are well placed to demonstrate responsible AI governance as the use of artificial intelligence, and scrutiny of how it is managed, continues to grow.
Why Working with an ISO 42001 Lead Implementer Matters
ISO 42001 is still a relatively new standard, and many organisations are only beginning to explore what responsible AI governance means in practice. Implementing an AI Management System requires more than understanding the standard itself. It also requires the ability to apply its requirements in a way that reflects how your organisation develops, deploys or uses artificial intelligence.
At twoSB, our ISO 42001 services are led by consultants who hold the ISO 42001 Lead Implementer credential and work with organisations deploying AI systems. This gives us the expertise to help organisations interpret the standard, design practical governance processes and implement an AI Management System that supports both compliance and commercial objectives.
Ready to explore ISO 42001? Book a call with our ISO 42001 Lead to discuss your organisation, your use of AI and the most appropriate route to ISO 42001 certification. If you’re ready to take the next step, you can also learn more about our dedicated ISO 42001 consultancy services.
Frequently Asked Questions
What is ISO 42001?
ISO 42001 is the international standard for an AI Management System (AIMS). Published in 2023, it provides organisations with a structured framework for governing the responsible development, deployment and use of artificial intelligence.
Does ISO 27001 cover AI governance?
Not directly. ISO 27001 focuses on information security which can encompass elements of AI governance, however it is not the primary objective. While it provides a strong foundation for managing information security risks, organisations using artificial intelligence may need ISO 42001 to address AI-specific governance, accountability and risk management.
Do I need both ISO 42001 and ISO 27001?
Not necessarily. If your organisation develops, deploys or relies on AI, ISO 42001 may be appropriate. If you also need to demonstrate effective information security management, ISO 27001 provides that framework. Many organisations benefit from implementing both because they address different but complementary areas of governance.
Is ISO 42001 mandatory?
No. ISO 42001 is a voluntary international standard. However, growing regulatory expectations, customer requirements and increased scrutiny of AI are encouraging more organisations to adopt recognised AI governance frameworks.
Who should implement ISO 42001?
ISO 42001 is suitable for organisations that develop AI systems, deploy AI within their operations, procure AI from third parties or provide AI-enabled products and services. It is particularly relevant for organisations where AI has the potential to create operational, regulatory or ethical risks.
How hard is it to achieve ISO 42001 certification?
ISO 42001 is a standard which attracts a relatively significant number of external audit days, even for smaller organisations. This means the system will get a good amount of scrutiny from the external assessor. Additionally, unlike information security which is a relatively well established discipline, the contemporary understanding of what good AI governance looks like continues to develop at pace. Neither of these facts need to make achieving ISO 42001 hard, but they do demand a well thought out, carefully evidenced and accurately documented approach to managing how your organisation interacts with AI. With good guidance achieving ISO 42001 is very achievable for any organisation.
At twoSB we often recommend focusing on a narrower scope initially, before broadening out your ISO 42001 certification to cover a wider range of activities and systems. This allows you to get certified and build organisational knowledge. For a company that is building their own internal AI system for example, they may choose to focus on this particular element, rather than also certifying the usage of third party AI tools across the organisation.
How does ISO 42001 relate to the EU AI Act?
ISO 42001 and the EU AI Act are different, but they are closely related. The EU AI Act establishes legal obligations for certain AI systems, while ISO 42001 provides a recognised framework for implementing AI governance, risk management and oversight. Although certification does not demonstrate compliance with the legislation on its own, it can support organisations in establishing many of the governance processes expected under the Act.
Is ISO 42001 only for organisations developing AI?
No. ISO 42001 is also relevant for organisations that deploy, integrate or procure AI solutions from third parties. Any organisation that uses artificial intelligence and wants to govern it responsibly can benefit from implementing an AI Management System.
Ready to Explore ISO 42001?
If your organisation is developing, deploying or using artificial intelligence, we’ll help you understand whether ISO 42001 is the right framework for your business, how it complements ISO 27001 and the most appropriate route to implementation and certification.
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