Organisations should use a central identity governance layer to unify accounts, roles, and entitlements across systems. That gives teams one place to enforce lifecycle rules, review access, and spot inconsistencies before they become security or compliance problems. Centralisation matters most when users span cloud applications, on premises directories, and third party services, because fragmented control quickly turns into identity sprawl.
How Centralised Governance Works Across Cloud Apps and Directories
A central identity governance layer should act as the control point for account inventory, role assignment, entitlement review, and lifecycle enforcement across every connected system. The practical goal is not to replace each source system, but to unify policy, visibility, and decision-making so access is governed consistently even when identities live in different directories, SaaS platforms, and business units.
That usually means connecting authoritative sources for joiner, mover, and leaver events, then normalising accounts and entitlements into a single governance view. When the same person can hold access in several systems, the governance layer needs to correlate those holdings, identify duplicates or drift, and route approvals or recertification through one process rather than many disconnected ones.
For a central model to work, organisations need clear ownership for each identity source and each entitlement catalog. The governance layer can orchestrate decisions, but it still depends on local systems to expose accurate account data, support deprovisioning, and enforce the access change once approved. If a department can create accounts outside the governed process, centralisation becomes reporting only, not control.
- Build a canonical identity record so the same user can be matched across directories, apps, and departments.
- Map roles and entitlements to business functions instead of letting each system define access in isolation.
- Synchronise lifecycle events so moves, transfers, and exits trigger the same access changes everywhere.
- Track exceptions centrally, because manual approvals and local overrides are where drift usually accumulates.
Why Fragmented Identity Governance Creates Drift, Not Just Admin Overhead
Fragmented governance is a control problem because every disconnected account store creates a new place for stale access, conflicting roles, or orphaned entitlements to survive. The risk grows when cloud apps are managed by one team, directories by another, and department-specific tools by a third, because no single owner can see whether access is still justified end to end.
This is where centralisation has real security value. A user who changes job function may keep access in one platform, lose it in another, and retain privileged rights in a legacy directory if revocation depends on separate tickets. The result is inconsistent enforcement, slower offboarding, and a larger blast radius if an account is abused or compromised.
Organisations also need to think about evidence and auditability. Central governance is strongest when it can show who approved access, when the entitlement was last reviewed, and whether the change actually propagated to the target system. Ultimate Guide to NHIs is useful here because the same governance logic applies when access sprawl, lifecycle gaps, and over-privilege are the core failure modes.
- Use one review cycle for overlapping access, rather than separate reviews per application.
- Detect toxic combinations such as local admin plus cloud admin plus dormant departmental access.
- Require revocation confirmation from target systems, not just a closed ticket.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
CIS Controls v8 and NIST CSF 2.0 set the technical controls, while ISO/IEC 42001:2023 define the regulatory obligations.
| Framework | Control / Reference | Relevance |
|---|---|---|
| CIS Controls v8 | 6 — Access Control Management | Central governance unifies entitlement decisions and access reviews across systems. |
| 5 — Account Management | The question is about managing user accounts spread across multiple repositories. | |
| Recommendation — Centralise access reviews and revocation workflows so every account change is enforced consistently. Maintain a complete account inventory and remove stale accounts through a governed lifecycle process. | ||
| NIST CSF 2.0 | PR.AA-01 — Identity and Access Management | Central identity governance is an IAM control function across cloud apps and directories. |
| PR.AA-04 — Access Permissions Management | The topic centers on reviewing and enforcing permissions consistently across systems. | |
| GV.RM-04 — Risk Management Strategy | Fragmented governance creates measurable access and compliance risk across departments. | |
| Recommendation — Establish a single authoritative identity governance process for account and entitlement decisions. Review and constrain permissions centrally so access drift is detected and corrected early. Treat identity sprawl as a governance risk and assign accountable owners for each source system. | ||
| ISO/IEC 42001:2023 | A.7 — AI System Lifecycle and Governance | Only if central identity governance extends to AI-driven access decisions does structured governance matter here. |
| Recommendation — Document governance for any automated identity decisions so approvals remain accountable and reviewable. | ||
Practitioner Guidance
What to prioritise: Start with the systems that create the most risk when they drift, usually directories, high-value SaaS platforms, and any departmental tool that can grant access without central approval. If you cannot inventory those first, central governance will miss the accounts that matter most.
What to verify: Confirm that the governance layer has authoritative feeds for account creation, role membership, entitlement changes, and termination events. Also verify that it can distinguish a real revocation from a failed sync, because “approved” does not mean “removed” until the target system reflects the change.
Common mistake: Treating centralisation as a reporting dashboard instead of an enforcement layer. If local teams can still create, approve, or retain access outside the governed workflow, the organisation has central visibility but not central control.
Practitioner takeaway: The objective is one policy and one decision record across many systems, not one more tool layered on top of fragmented ownership.
Related resources from NHI Mgmt Group
- How should organisations automate user provisioning and deprovisioning across identity directories and SaaS apps?
- How should MSPs centralise identity governance across users, devices, and SaaS apps?
- Why do SaaS apps create identity governance risk as they spread across the business?
- How can organisations unify governance across ERP and cloud apps without creating duplicate controls?
