Why do informal approvals create risk in identity governance?

Why informal approvals weaken identity governance

Informal approvals break the control chain that identity governance depends on. Once approval moves into a conversation thread or hallway discussion, you lose a durable record of who approved the access, which entitlement was granted, and whether the decision matched the policy that should have governed it. That makes later review, challenge, and removal far harder.

It also creates ambiguity over accountability. Identity governance is not only about getting access approved, it is about proving the approval was valid, time-bound, and tied to an owner who can be questioned if the access later proves excessive or inappropriate.

What formal approval changes in the control model

A formal workflow turns approval into evidence. It records the requester, approver, entitlement owner, timestamp, and the decision path, which lets teams reconstruct why access was granted and whether the request followed segregation-of-duties checks.

That record matters because entitlement decisions often outlive the business event that triggered them. If access was granted for a project, incident, or temporary exception, the approval trail should make it possible to revisit the justification when the work ends or the role changes.

Formal approvals also help enforce consistent decision rules. When access is approved through a governed process, the same request can be measured against role design, least privilege, and recertification expectations instead of relying on memory or informal trust.

Why auditability and ownership matter after access is granted

Identity governance fails quietly when approvals cannot be traced back to an accountable owner. Without a named approver and a durable record, review teams cannot tell whether the access was properly authorised, whether the approver had the right delegated authority, or whether the entitlement should be challenged during certification.

That is especially important when access changes over time. A valid approval at the start does not mean the access remains justified later, so the approval record must support periodic review, revocation, and exception handling when the business context shifts.

Informal approval also weakens segregation of duties because it becomes difficult to prove that conflicting roles were checked before access was granted. If the organisation cannot show how the control was applied, the control is functionally weaker even if the access itself was technically correct.

For teams building a stronger governance baseline, NHIMG’s IAM and IGA Basics is useful background on approvals, access reviews, and entitlement governance. For broader lifecycle discipline, the NHI Lifecycle Management Guide shows how provisioning, review, and offboarding fit together.

Risk and Threat Considerations

Informal approvals create a control gap that adversaries and insiders can exploit because the organisation cannot reliably prove why access exists. If access is granted outside a governed workflow, it is easier for excessive privilege, dormant access, and unchallenged exceptions to persist long enough to become an actual exposure.

Failure mechanism: Approval evidence is fragmented across chat, email, or verbal direction, so governance teams cannot reliably confirm authorisation, segregation-of-duties checks, or entitlement ownership before or after the grant. That weakens recertification and makes inappropriate access harder to detect and remove.

Impact: The organisation loses auditability, weakens accountability, and increases the chance that access stays in place after the original need has ended. In practice, that expands the blast radius of mistakes, policy drift, and misuse.

Practitioner Guidance

What to verify: Treat any access grant without a durable approval record as a governance exception until proven otherwise. Verify that the approver is the right owner for the entitlement, that the request maps to a legitimate business purpose, and that the approval can be replayed during audit or recertification.

Decision rule: If an approval cannot be reconstructed from the system of record, do not treat the access as properly governed. Escalate it for retrospective validation, because the absence of evidence is itself a control failure when access rights are involved.

Practitioner takeaway: Good identity governance is not just about getting to yes, it is about making every yes reviewable, attributable, and reversible when the business context changes.

Related resources from NHI Mgmt Group

• When does a cloud identity platform create more governance risk than it reduces?
• Why does hybrid identity create extra NHI governance risk?
• Why do remote MCP servers create more identity governance risk than local ones?
• Why do one-off connectors create governance risk in identity security?