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A.5.9ISO 27001:2022 Annex A

Inventory of information and other associated assets

ISO/IEC 27002:2022 attributes

Control type
Preventive
Security properties
Confidentiality · Integrity · Availability
Cybersecurity concept
Identify
Operational capability
Asset management
Security domain
Governance and ecosystem · Protection

Attribute tags as published in ISO/IEC 27002:2022, compiled from public listings — confirm against your licensed copy.

Plain-language summary

Knowing what information you hold and which assets support it — systems, software, devices, services, facilities — with a named owner for each, recorded in an inventory accurate enough to base risk, access and protection decisions on.

What the clause is really asking

You cannot protect what you do not know you have. This control asks you to keep an up-to-date inventory of your information and the assets associated with it, with an owner named for each. Information comes first deliberately: customer records, designs, HR files, financial data and the datasets inside systems, not only the hardware they run on. Associated assets include software, services, devices, network equipment, facilities and storage media. The inventory need not be a single list — an IT asset tool, a cloud register and an information asset register can work together — but they must agree with each other and with reality. Owners answer for their assets across the life cycle: classification, protection, access review and proper disposal. The common misunderstanding is that the IT hardware list is the inventory. In South Africa, include personal information: the categories of data subjects and personal information described in your PAIA section 51 manual should reconcile with the register, and POPIA section 19's duty to identify foreseeable risks to personal information starts here.

What auditors look for

Auditors ask for the inventory and test it in both directions. From the register, they pick assets and ask to see them or their owner — a laptop serial number, a database, a cloud service. From the floor, they note a server, a shared drive, a SaaS tool someone mentions or a cabinet of HR files and check it is listed. They ask owners what their responsibilities are. They compare the information assets with the PAIA manual. They check the inventory feeds risk assessment and access reviews. The hard question: when was this last updated, and what process updates it when something new arrives or leaves?

Typical evidence

Information asset register listing information types, location, classification, owner and personal information categories; IT asset inventory of hardware and software; cloud service register; owner assignments and acknowledgements; update procedure linked to procurement, onboarding and disposal; reconciliation records between inventories; PAIA section 51 manual cross-referenced to the register.

How to comply — recommendations

Start with information, not hardware: run short workshops with each department to list the information they hold, where it lives, who owns it and whether it includes personal information. Record it in an information asset register with classification and owner. Link it to the IT asset inventory, ideally generated automatically by your endpoint or device-management tool, and to the cloud service register. Tie updates to procurement, onboarding, change management and disposal so the inventory changes when the estate does. Have owners confirm their entries every year. Reconcile the personal information entries with your PAIA manual and use the register as the starting point for risk assessment.

Common nonconformities

Inventory limited to IT hardware with no information assets; assets in use but not listed, such as cloud services or shared drives; owners not assigned or unaware of their role; inventory out of date; disposed assets still listed; no process for keeping the inventory current; personal information holdings not identified; separate inventories that contradict each other.

Related clauses

ISO/IEC 27002:2022 5.9 (guidance); ISO 27001 6.1.2 (risk assessment); Annex A 5.10 (acceptable use), 5.11 (return of assets), 5.12 (classification), 5.23 (cloud services), 7.10 (storage media), 7.14 (secure disposal or re-use of equipment); POPIA s19(2)(a); PAIA s51; NIST CSF 2.0 ID.AM (asset management).

Resources for this clause

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