Teams handle access reviews for disconnected systems by exporting authoritative entitlement data from the application, reviewing it outside the SSO workflow, and feeding approved removals back through the system administrator or an automated connector. The key control is reconciliation, so local accounts, shared accounts and application roles are not missed just because they sit outside central identity tooling.
Why access reviews fail when the system is outside SSO
Access review scope has to follow the system, not the SSO layer. When an application keeps its own users, roles, shared logins or service-style access, the review process has to start from that system’s authoritative entitlement data, not from the central identity provider. Teams that review only SSO-linked accounts usually miss local access and therefore miss the actual risk.
Disconnected systems also change the ownership model. The system administrator, application owner or connector owner often becomes the source of truth for export, validation and removal, because the central identity team cannot see or revoke every entitlement directly.
Where entitlement definitions are messy, review quality drops fast. A role name may hide multiple permissions, or a shared account may represent several people and no single accountable owner, which makes “approve or remove” decisions much harder than in a clean SSO directory.
How teams run a workable review process
The practical pattern is to export a complete entitlement snapshot, then review it outside the SSO workflow against the application’s own roles, groups and local accounts. That review should include dormant users, shared accounts, direct grants and any account that bypasses central provisioning. Teams can strengthen this step by using a structured review guide such as Access Reviews and Certification Guide, because disconnected systems need a closed-loop process, not an informal sign-off.
Once reviewers approve removals, the response has to be fed back into the source system through the administrator or an automated connector. The important part is reconciliation, meaning the exported list, the reviewer decision and the final system state must all agree. If there is no reconciliation step, review evidence exists on paper while the access still exists in production.
For recurring reviews, the most reliable teams tie the export to a regular cadence and keep the entitlement data in a format that reviewers can actually understand. That is where a broader lifecycle model helps, especially when local accounts must be governed alongside centrally managed identities. IAM and IGA Basics is useful because it frames access review as part of identity governance, not a one-off checkbox.
What to check before you trust the review result
The first check is completeness. The export must cover every account type that can grant access, including local users, shared accounts, emergency access, application roles and any bypass path that sits outside SSO. If the system cannot produce a complete entitlement extract, the review is already partial.
The second check is accountability. Every reviewed entitlement should map to an owner who can explain why access exists and who is responsible for approving removal. If ownership is unclear, the review should flag the access as a governance gap rather than treat silence as approval.
The third check is evidence quality. Teams should retain the exported entitlement set, reviewer decisions, timestamps, and the proof that removals were executed in the application. For systems where access is materially tied to lifecycle controls, NHI Lifecycle Management Guide gives a useful example of why provisioning, review and offboarding must be treated as one control loop.
Risk and Threat Considerations
Disconnected systems create review blind spots because the central identity stack cannot automatically see or enforce every entitlement. That makes stale local accounts, shared credentials and overly broad application roles easier to miss, especially when teams rely on SSO reports as if they were complete.
Failure mechanism: The review process checks only centrally managed identities, so local entitlements remain untouched, review evidence becomes misleading, and unneeded access survives the certification cycle.
Impact: Excess privilege can persist after job changes or departures, and shared accounts can obscure attribution during investigation or response.
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 | AC-2 — Account Management | Access reviews for non-SSO systems are account lifecycle control. |
| AC-6 — Least Privilege | Disconnected systems often hide excessive local roles and shared access. | |
| AU-6 — Audit Review, Analysis, and Reporting | Review decisions need traceable evidence and follow-up on removals. | |
| Recommendation — Review and remove inactive or excess local accounts through a reconciled account management process. Restrict application roles and direct grants to the minimum needed for each account. Retain review evidence and verify that approved removals were executed in the target system. | ||
| ISO/IEC 27001:2022 | A.5.15 — Access control | Access reviews for standalone systems are an access-control governance activity. |
| A.5.18 — Access rights | Recertifying entitlements and revoking stale access directly maps to access rights control. | |
| Recommendation — Apply access control rules consistently to local accounts, roles and shared access paths. Periodically review, adjust and revoke access rights that no longer have a business need. | ||
Practitioner Guidance
What to prioritise: Start with systems that can grant direct application access outside SSO, especially those with shared accounts, local administrators or manually assigned roles. Those systems usually carry the highest review debt and the weakest automation.
What to verify: Confirm that the entitlement export is authoritative for the application, not just a list of synced users. If reviewers cannot see roles, direct grants and service-style accounts in one place, the review is not yet complete enough to act on.
Decision rule: If the system cannot remove access through the normal workflow, require a documented fallback path with named ownership and a reconciliation check after every approved removal. A review that cannot drive actual deprovisioning should be treated as incomplete, not merely delayed.
Practitioner takeaway: For systems outside SSO, the control is not the review form, it is whether the review reaches the system of record and proves that access was actually removed.
Related resources from NHI Mgmt Group
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Reviewed and updated by the NHIMG editorial team on November 6, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org