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11/06/2026 10:40 pm
TL;DR: Separation of privilege limits what any single account, role, or process can do, reducing escalation and damage when access is compromised, according to Zluri’s guide. The control matters because it only works when role design, access reviews, and offboarding discipline are aligned with how privileges are actually used.
NHIMG editorial — based on content published by Zluri: Security and compliance separation of privilege security principle, a guide
Questions worth separating out
Q: How should security teams implement separation of privilege in IAM programmes?
A: Start by identifying the actions that create unacceptable risk if a single identity can perform them alone.
Q: What breaks when separation of privilege is treated as a role design exercise only?
A: The control breaks when role names look separated but the underlying permissions still allow one identity to approve, change, and execute the same sensitive task.
Q: How do you know if privilege separation is actually working?
A: Look for whether a single identity can complete a sensitive workflow without crossing another control boundary.
Practitioner guidance
- Map privilege combinations that must never coexist Identify roles, service accounts, and workflows that can both approve and execute the same sensitive operation.
- Test RBAC against real task chains Walk through the full business process for account creation, file deletion, security changes, and emergency access.
- Make exceptions time-bound and reviewable Give backup access, emergency access, and temporary delegation explicit expiry dates, then force recertification before renewal.
What's in the full article
Zluri's full article covers the operational detail this post intentionally leaves for the source:
- A step-by-step breakdown of how Zluri frames separation of privilege across RBAC, sandboxing, and access workflows.
- Examples of how the article applies the principle to onboarding, access certification, and recurring reviews.
- The specific Zluri capability descriptions for discovery, automation, and anomaly detection that sit behind the governance discussion.
- The article's own implementation-oriented examples for balancing convenience, contingency access, and privilege separation.
👉 Read Zluri's guide to separation of privilege and IAM governance →
Separation of privilege and IAM governance: where teams still slip?
Explore further
12/06/2026 6:56 am
Separation of privilege is one of the few identity controls that directly limits blast radius, but only when the split is enforced across roles, workflows, and system boundaries. The article correctly treats the control as a way to stop one compromised account from doing everything. In IAM terms, that means the access model must make a single identity insufficient for high-impact actions. The practitioner conclusion is simple: if one role can still approve, change, and execute the same sensitive operation, separation of privilege is already failing.
A few things that frame the scale:
- 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface, according to Ultimate Guide to NHIs.
- Only 20% have formal processes for offboarding and revoking API keys, and even fewer have procedures for rotating them, which shows how easily privilege separation decays without lifecycle controls.
A question worth separating out:
Q: What is the difference between RBAC and separation of privilege?
A: RBAC groups permissions into roles, while separation of privilege is the rule that critical powers must not sit in one place. A role model can support the control, but it can also hide over-broad access. The difference matters because you can have RBAC in place and still allow a single identity to do too much.
👉 Read our full editorial: Separation of privilege is a governance control, not just a design pattern
