Why do access approval processes become risky when teams add more tools and handoffs?

Why This Matters for Security Teams

Access approval becomes risky when the process is stretched across more tools because the control no longer lives in one place. Every extra portal, ticket state, and manual handoff creates another opportunity for bypass, stale approvals, or mismatched context. That is especially dangerous for NHI-heavy environments, where requests may relate to secrets, service accounts, API keys, or agent permissions that can be used immediately once granted.

NHIMG research shows the scale of the problem: Ultimate Guide to NHIs reports that 97% of NHIs carry excessive privileges, which means a weak approval step is often approving more access than the requester actually needs. Framework guidance from NIST Cybersecurity Framework 2.0 reinforces that access decisions should be traceable, governed, and continuously aligned to risk. In practice, many security teams encounter approval drift only after a high-risk request has already been approved through three systems and no one can reconstruct why.

How It Works in Practice

The safest model is to reduce handoffs and make the approval decision follow the request, not the user’s memory of where to click next. For human access, that means a single workflow that captures the requester, resource, policy basis, approver, and expiry. For NHI access, the same logic should extend to secrets issuance, service account entitlements, and agent tool permissions, with approvals tied to policy rather than informal escalation.

Current best practice is to route approvals through policy-as-code and a central identity or access gateway, so the decision can be evaluated at request time and recorded once. This is consistent with the direction of the OWASP Non-Human Identity Top 10, which emphasizes the risks created by weak lifecycle control and excessive privilege. It also aligns with NHIMG’s broader lifecycle guidance in Ultimate Guide to NHIs — Lifecycle Processes for Managing NHIs, where approval, issuance, rotation, and revocation need to be treated as one chain of control rather than separate tasks.

• Define one authoritative approval record, even if the user experience spans multiple tools.
• Require the request to name the target system, purpose, duration, and owner before approval.
• Use policy to decide whether the approver has authority for that access type.
• Expire approvals automatically when the business need ends or the TTL lapses.
• Log the complete path from request to issuance so audit teams can reconstruct the decision.

This guidance tends to break down in federated environments with separate IAM, ITSM, and secret-management stacks because each platform can preserve its own version of the truth.

Common Variations and Edge Cases

Tighter approval controls often increase cycle time and operational overhead, so organisations have to balance speed against assurance. The tradeoff is not whether to simplify the workflow, but where to remove friction without removing accountability. That is why some teams use tiered approval thresholds, where low-risk requests are auto-approved under policy and high-risk requests trigger human review.

There is no universal standard for this yet, especially for agentic and multi-system workflows. A request for an API key, a temporary elevation, or an agent tool grant may look similar on paper but carry very different blast radius in practice. NHIMG’s 52 NHI Breaches Analysis and the NIST control set in NIST SP 800-53 Rev 5 Security and Privacy Controls both support the same practical lesson: approvals must be specific, time-bound, and auditable. When exceptions are needed, they should be explicit, documented, and automatically reviewed rather than buried in email or chat handoffs.

Teams also need to watch for shadow approvals, where a manager or engineer informally confirms access outside the ticketing path. That practice may feel efficient, but it destroys evidence and creates a second, weaker control plane. The more tools involved, the more important it becomes to force every meaningful decision back into one governed workflow.

Related resources from NHI Mgmt Group

• When does manual access oversight become too risky for identity governance programs?
• Why does privileged access become harder to control as organisations adopt more cloud and collaboration tools?
• When does manual access cleanup become too risky in Microsoft 365 environments?
• How should security teams handle credential access in AI-powered browsers and other agentic browsing tools?