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24/06/2026 9:27 pm
TL;DR: Least privilege works only when organisations can continuously reduce accounts, constrain permissions, and measure access drift, according to Opal Security. Without lifecycle discipline and time-bound access, privilege sprawl keeps the attack surface open and makes post-breach investigation harder.
NHIMG editorial — based on content published by Opal Security: Least privilege security is important. But how do you actually implement it?
By the numbers:
- Only 20% have formal processes for offboarding and revoking API keys, and even fewer have procedures for rotating them.
- 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface.
- 91.6% of secrets remain valid five days after the targeted organisation is notified, showing a critical gap in remediation procedures.
Questions worth separating out
Q: How should security teams implement least privilege without disrupting operations?
A: Start with the systems that matter most, especially crown-jewel applications and data stores.
Q: Why do standing privileges create such a large security gap?
A: Standing privileges matter because they outlive the original need for access.
Q: What do organisations get wrong about just-in-time access?
A: The common mistake is treating JIT as a label rather than an operating model.
Practitioner guidance
- Inventory and remove unnecessary accounts Start by identifying every account, integration, and service identity that can reach sensitive systems.
- Convert broad grants into task-scoped access Rewrite standing entitlements so that higher-risk permissions are only available for a specific task, system, or ticketed workflow.
- Measure access drift on crown-jewel systems Track permanent versus time-bound access, unused permissions over a 30 day window, and high-risk entitlements attached to the most sensitive platforms.
What's in the full article
Opal Security's full blog post covers the operational detail this post intentionally leaves for the source:
- A step-by-step least privilege implementation sequence for reducing accounts and privileges.
- Practical examples of using just-in-time access and time-bound access in day-to-day operations.
- A phased approach for starting with crown-jewel systems before expanding least privilege across the environment.
- Baseline ideas for measuring permanent versus time-bound access over time.
👉 Read Opal Security's guide to implementing least privilege security →
Least privilege security: what IAM teams still miss?
Explore further
25/06/2026 6:41 am
Least privilege fails when governance is treated as a provisioning event instead of a lifecycle control. The article correctly frames least privilege as continuous reduction, not a one-off hardening exercise. That matters because the access problem in modern enterprises is rarely the first grant. It is the permissions that survive after the work changes, the team changes, or the system changes. Practitioners should treat entitlement decay as the real enemy.
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.
- 91.6% of secrets remain valid five days after the targeted organisation is notified, showing a critical gap in remediation procedures.
A question worth separating out:
Q: Who should own least privilege governance across human and machine identities?
A: Ownership should sit with the teams that understand both the business purpose and the technical reach of each identity. That includes application owners for service accounts, system owners for integrations, and IAM teams for policy enforcement. Least privilege breaks when no one is accountable for removing access that is no longer needed.
👉 Read our full editorial: Least privilege security still fails without lifecycle governance
