Excess access and privilege creep: where insider risk starts

TL;DR: Over-access, privilege creep, and toxic permission combinations turn ordinary employees, contractors, and vendors into high-impact internal risk, according to SecurEnds. The governance failure is not intent detection alone, but the loss of least privilege across joiner-mover-leaver and access review processes.

NHIMG editorial — based on content published by SecurEnds: Insider Threats Caused by Excess Access

By the numbers:

• 80% of organisations report their AI agents have already performed actions beyond their intended scope, including accessing unauthorised systems (39%), inappropriately sharing sensitive data (31%), and revealing access credentials (23%).
• 96% of technology professionals identify AI agents as a growing security threat, and 66% believe this risk is immediate.

Questions worth separating out

Q: What breaks when access reviews do not keep up with privilege creep?

A: When access reviews lag behind role changes, temporary projects, and system changes, excess permissions become normalised.

Q: Why do over-privileged users create more insider risk than simple account volume?

A: Over-privileged users can reach sensitive workflows, export data, or change systems without needing additional compromise.

Q: How do organisations know if least privilege is actually working?

A: Least privilege is working when users, contractors, and vendors only retain permissions that match their current role and there are no lingering high-risk combinations.

Practitioner guidance

• Reconcile role changes against active entitlements Compare current job function, project assignment, and business owner approval against actual entitlements at each mover event.
• Identify toxic permission combinations across systems Look for combinations such as approve-and-pay, develop-and-deploy, or read-and-export across SaaS and cloud tooling.
• Apply the same offboarding discipline to third parties Track contractor and vendor access through the same lifecycle process used for employees, including expiry, recertification, and revocation triggers.

What's in the full article

SecurEnds's full article covers the operational detail this post intentionally leaves for the source:

• Step-by-step examples of access review and entitlement cleanup across common business roles.
• Specific mitigation patterns for joiner-mover-leaver workflows and privileged access reduction.
• Practical scenarios showing how toxic permission combinations create insider risk in finance, development, support, and vendor access.
• How the article frames automated access governance for ongoing privilege creep detection.

👉 Read SecurEnds's analysis of insider threats caused by excess access →

Excess access and privilege creep: where insider risk starts?

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