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Implementing ISO 27001:2022 Annex A Control 5.9: Inventory of Information and Other Associated Asset

The ISO 27001 standard has long been the gold standard for information security management systems (ISMS), guiding organizations in protecting their sensitive assets. A key element in this framework is Control 5.9, focusing on the inventory of information and other associated assets. This article delves into this control, its importance, and how implementing it can be significantly streamlined through our ISO Nerd's innovative 'Asset Register' feature.

Understanding Control 5.9

The primary objective of this control is to establish and maintain an inventory of the organization's information and other associated assets. This aids in preserving their information security and assigning appropriate ownership.

Key Elements

  • Inventory: A list of assets should be kept up-to-date, accurate, and consistent. This can range from information assets to hardware and software inventories.

  • Ownership: Each asset in the inventory should have a designated owner, responsible for its lifecycle management.

  • Granularity: The level of detail in the asset inventory should match the organizational needs, sometimes taking into account assets with a shorter lifespan, like virtual machine instances.

Why Implement Control 5.9?

  1. Risk Management: Understanding what assets you have is the first step in assessing vulnerabilities and risks.

  2. Audit Activities: An accurate inventory is crucial for internal and external audits.

  3. Recovery Planning: In the case of an incident, having a detailed asset inventory can accelerate the recovery process.

How to Implement

Manual Implementation

  1. Identify Assets: List down all your assets - be it hardware, software, or data-related.

  2. Assign Ownership: Link every asset to an individual or a group within the organization.

  3. Classification: Each asset should be classified according to its information sensitivity.

  4. Regular Reviews: Periodically review the inventory to keep it updated.

Automated Implementation: Introducing Our 'Asset Register' Feature

Our SaaS product significantly simplifies this process, with features that are designed keeping Control 5.9 in mind.

  • Easy Asset Addition: Add virtual, data, hardware, and software assets effortlessly.

  • CSV Import: Bulk-import your existing assets via a CSV file.

  • Azure Sync: If you’re an Azure user, sync your virtual resources automatically.

  • Ownership and Review: Assign owners, set review dates, and categorize your assets right within the platform.

Common Pitfall: Overlooking Information Assets

While many organizations do an admirable job in keeping track of physical assets like hardware and tangible software licenses, there is often a glaring omission: Information assets. This oversight can range from untracked datasets, confidential customer records, or proprietary algorithms to business plans and internal documentation. The standard explicitly calls for the inclusion of information assets in the inventory for good reason.

Why Are Information Assets Often Missed?

  1. Lack of Awareness: Many organizations don't fully understand the value or importance of information assets, viewing them as less tangible and therefore less "real" compared to physical assets.

  2. Complexity: Information assets can be complicated to categorize and manage, especially when they're dispersed across various departments or even geographical locations.

  3. Rapid Changes: The very nature of information assets means they can be quickly created, modified, or even deleted. Keeping up can be a challenge.

Risks of Neglecting Information & Virtual Assets

  • Security Vulnerabilities: Untracked information assets are not adequately protected, making them low-hanging fruit for cybercriminals.

  • Compliance Issues: Failure to include information assets in your inventory could result in non-compliance with ISO 27001 or other regulations, leading to penalties or sanctions.

  • Operational Inefficiency: Unmanaged assets can lead to duplication of efforts, data inconsistencies, and even strategic missteps.


  1. Control 5.9 is not just a compliance requirement but a necessity for effective information security management.

  2. Implementing this control manually can be cumbersome and prone to errors.

  3. Our 'Asset Register' feature provides a streamlined, automated approach to implementing Control 5.9.

  4. Ownership & Classification: Just like physical assets, information assets can be assigned an owner and a classification level, ensuring proper stewardship and security protocols.

In essence, Control 5.9 plays a vital role in safeguarding your organization's critical assets. With our ISO Nerd , complying with this control becomes a straightforward task. Experience how simple and efficient asset management can be. Book a demo today!

The omission of information assets is more than a simple oversight; it's a glaring gap in your organization’s asset management and security posture. ISO Nerd's Asset Register' is designed to close that gap efficiently and comprehensively, making it an invaluable tool for any organization looking to improve its asset management and information security practices.


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