What should organisations do when a token has broad access but low observed use?

Treat low use as a governance signal, not reassurance. Narrow the scope to the demonstrated behaviour, then keep watching for new legitimate calls so you can expand only when the workload proves it needs more access.

Why broad tokens are a governance problem, not a usage problem

Low observed use does not tell you whether a token is safe. It only shows that the current behaviour set is narrow. The real question is whether the token can do more than the workload has happened to do so far. When access exceeds demonstrated need, governance should follow behaviour, not assume latent scope is harmless.

That distinction matters because token scope is a forward-looking control, while usage is only a snapshot. A token may be quiet today because the workload is new, temporarily idle, or simply not yet routed through the paths it was granted. A narrow access profile built from actual calls is a better signal than the original entitlement alone.

When teams let broad scope stand because “it has not been used much,” they usually preserve hidden blast radius. The practical aim is to align privilege with the smallest set of calls the workload can justify now, not with what it might need in theory.

How to shrink scope without breaking the workload

Start by separating required calls from convenience access. Identify the operations the token has actually exercised, then compare them with the broader entitlement set. If the workload only reads a single repository, calls one API family, or posts to one resource class, the token should not retain unrelated write, admin, or cross-environment permissions. The least-disruptive reduction is usually the one that preserves the observed path and removes everything else.

Use a staged reduction when the token supports a live service. Narrow one permission boundary at a time, then watch for denied calls, retries, or fallback behaviour. That approach is safer than a big-bang reduction because it distinguishes true dependency from accidental overreach. Where possible, API key management guidance and secrets sprawl remediation both reinforce the same principle: scope should be matched to use, then revisited as behaviour changes.

Low-use tokens are also the point where rotation and replacement decisions become easier. If a token is already overbroad, shrinking the scope while introducing a shorter-lived replacement can reduce both standing privilege and recovery cost. For workloads that authenticate as services or integrations, the rotation challenge is less about technology than about dependency mapping, because you need to know what breaks before you change what the token can do.

How to tell whether low use is legitimate or just incomplete visibility

Observed use is only reliable if your logging is complete enough to see the token’s full path. Some tokens touch control planes, fallback endpoints, batch jobs, or cross-service calls that never show up in the most obvious dashboard. A token can look quiet while still carrying meaningful authority, so the better check is to validate both the activity stream and the places where the token is allowed to operate.

Pay special attention to tokens that have broad access but no clear owner, unclear business function, or no expiry discipline. Those are the ones most likely to survive after the original use case has changed. A low-use token with no lifecycle review is often less like an efficient integration and more like dormant access waiting for reuse, misrouting, or compromise.

Standards & Framework Alignment

This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.

OWASP Non-Human Identity Top 10 addresses the attack surface, NIST SP 800-53 Rev 5 sets the technical controls, and ISO/IEC 27001:2022 defines the regulatory obligations.

Framework	Control / Reference	Relevance
OWASP Non-Human Identity Top 10	NHI-05 — Overprivileged NHI	Broad access with low use is overprivilege for a non-human token.
	NHI-07 — Long-Lived Secrets	Low-use broad tokens often persist too long without lifecycle review.
Recommendation — Reduce token permissions to the smallest set of calls the workload actually uses. Replace stagnant tokens with shorter-lived credentials and enforce expiry reviews.
NIST SP 800-53 Rev 5	IA-5 — Authenticator Management	Token scope, rotation, and revocation are authenticator lifecycle controls.
	AC-6 — Least Privilege	Broad token access should be trimmed to demonstrated need.
Recommendation — Review, rotate, and revoke tokens on a defined lifecycle schedule. Limit the token to only the permissions required for current operations.
ISO/IEC 27001:2022	A.5.15 — Access control	Access rights should be provisioned and adjusted to need, not assumed use.
Recommendation — Reassess access rights and remove permissions that are not justified by current use.

Practitioner Guidance

What to verify: confirm which permissions the token has actually exercised in the last review period, then test whether any denied calls show the workload is already relying on hidden breadth. If the token is never used for a privilege, treat that permission as removable until a concrete call pattern proves otherwise.

Decision rule: if the token can authenticate to a production system, reduce scope before you decide whether it has been abused. Low use is a reason to tighten and observe, not a reason to defer action.

What good looks like: the token has a clear owner, a narrow purpose, short-lived or reviewable validity, and observable access patterns that match the permissions it still holds.

Practitioner takeaway: the safest token is not the one that is used least, it is the one whose remaining authority is still justified by current behaviour and can be changed without guessing.