Organisations should use ITAM data to trigger access reviews for software, SaaS, and device-related access that no longer matches business need. The review should verify asset ownership, current usage, and whether the entitlement is still justified. This works best when procurement, IAM, and service owners share the same lifecycle evidence.
Why ITAM belongs in access review design
ITAM should act as a trigger and evidence source for access reviews, not as a separate record-keeping exercise. When an asset is retired, reassigned, or no longer used as expected, the attached access should be reviewed for removal or re-justification. That is especially important for software entitlements, SaaS subscriptions, and device-linked access where ownership and business purpose can drift over time.
Good practice is to treat the asset record as the starting point for review scope. If the asset has a named owner, current custodian, deployment location, or lifecycle state, those fields should shape who reviews the access and what they are asked to confirm. The review is stronger when it asks, "Does this access still match the asset's current business use?" rather than only "Does this account still exist?"
For organisations building the process, Access Reviews and Certification Guide is a direct fit because it focuses on review design that removes access instead of rubber-stamping it. In the same lifecycle context, IAM and IGA Basics explains how access governance uses authoritative lifecycle evidence to drive review decisions.
What evidence makes an ITAM-driven review credible?
An ITAM-linked review is only reliable if the evidence can answer three practical questions: who owns the asset, who is still using it, and why the access exists today. Ownership matters because reviewers need an accountable decision-maker. Usage matters because dormant or unobserved access is often the first sign that entitlements no longer reflect actual work. Justification matters because access that cannot be explained should not survive a review cycle by default.
This is where procurement data, service ownership, CMDB-style records, and IAM records need to meet. If the same item appears under different names or identifiers across systems, review automation will misfire, duplicate work, or miss stale access. The review should therefore be driven by stable asset identifiers, current status, and a clear mapping from asset to entitlement, role, account, or device trust relationship.
IGA Buyer's Guide is useful here because it frames reviews as part of a broader governance workflow with connectors and lifecycle evidence. Joiner-Mover-Leaver (JML) Guide also matters because the same authoritative data that updates access on role or asset change should feed the review queue when access is no longer aligned to the current state.
How to make the review workflow operationally useful
The most effective pattern is event-driven: an ITAM change creates a review case when the change has security significance. Typical triggers include asset retirement, reassignment, disposal, long-term inactivity, contract end, or ownership change. The review should then route to the right decision-maker, such as the service owner for software, the asset custodian for devices, or the application owner for SaaS access.
For scale, the workflow should group related entitlements so reviewers see the whole access picture, not isolated line items. A reviewer can decide faster when they see the asset, the user, the application, the last observed use, and the business justification together. If the process requires manual lookup across multiple systems, review quality drops and the organisation tends to approve rather than investigate.
For access models with role complexity, Role Mining and Role Design Guide helps explain why stale asset-linked access often persists inside poorly managed roles. Where access includes privileged or service-style permissions, Privileged Access Management Guide is relevant because review decisions should distinguish ordinary entitlement cleanup from higher-risk privilege review.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
NIST SP 800-53 Rev 5 sets the technical controls, while ISO/IEC 27001:2022 defines the regulatory obligations.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST SP 800-53 Rev 5 | CM-8 — System Component Inventory | Asset inventory is the trigger source for review scope and ownership evidence. |
| AC-2 — Account Management | Access reviews are a core control for confirming whether accounts still need access. | |
| IA-5 — Authenticator Management | ITAM-driven reviews often uncover stale credentials and device-linked authenticators that should be rotated or removed. | |
| Recommendation — Use CM-8 to keep asset records current and feed them into access review triggers. Use AC-2 to recertify and remove accounts whose access no longer matches business need. Use IA-5 to rotate or revoke authenticators tied to retired or reassigned assets. | ||
| ISO/IEC 27001:2022 | A.5.9 — Inventory of information and other associated assets | ITAM depends on asset inventory as the basis for lifecycle-linked access review decisions. |
| A.5.15 — Access control | The page is about connecting asset evidence to access decisions and removals. | |
| Recommendation — Maintain a current asset inventory and use it to scope periodic access reviews. Tie access approvals and removals to current business need and asset status. | ||
Practitioner Guidance
What to prioritise: Start with assets whose lifecycle changes most often and whose access can do the most harm if left in place, such as SaaS admin tools, shared platforms, and devices with broad trust. Those are the cases where stale access tends to hide longest.
What to verify: Before trusting a review, verify that the asset record, entitlement record, and owner record all refer to the same object. If any one of those is missing or stale, the review should be treated as incomplete rather than approved.
What good looks like: The organisation can show that lifecycle events automatically generate review cases, reviewers receive enough context to decide quickly, and removals are actually executed rather than merely certified.
Practitioner takeaway: ITAM should not just inventory assets, it should create the evidence trail that proves whether access still has a business reason to exist.
Related resources from NHI Mgmt Group
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Reviewed and updated by the NHIMG editorial team on October 8, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org