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12/06/2026 10:00 pm
TL;DR: Policy-based access control uses policies, attributes, and context to decide access, which helps reduce the rigidity of role-only models in dynamic environments, according to Zluri's guide on PBAC. The deeper issue is that access models must now account for context-heavy, lifecycle-driven decisions across human, workload, and machine identities.
NHIMG editorial — based on content published by Zluri: Access Management Policy Based Access Control (PBAC) - A Guide for 2026
By the numbers:
- 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface.
Questions worth separating out
Q: How should security teams implement policy based access control in existing IAM programmes?
A: Start by mapping which access decisions are truly context-dependent and which can remain role-based.
Q: Why do policy based controls still fail when the rules are technically correct?
A: They fail when the inputs are wrong, stale, or incomplete.
Q: What do teams get wrong about PBAC and role-based access control?
A: Teams often assume PBAC can solve role sprawl by itself.
Practitioner guidance
- Define policy ownership before expanding PBAC Assign clear owners for policy logic, attribute sources, and exception handling so access decisions remain auditable and business rules do not drift between teams.
- Use PBAC alongside role hygiene Keep RBAC as the baseline for scalable administration, then use policy conditions to narrow access for sensitive apps, contractors, and time-bound tasks.
- Validate the quality of policy inputs Review attribute freshness, device signals, and location logic on a scheduled basis so access decisions are not being made from stale or incomplete context.
What's in the full article
Zluri's full guide covers the operational detail this post intentionally leaves for the source:
- Step-by-step examples of how PBAC policies are expressed across business applications and infrastructure controls
- Expanded discussion of access review workflows, certification steps, and administrative handling of policy exceptions
- More implementation detail on how Zluri positions automation for access assignment, changes, and revocation
👉 Read Zluri's guide to policy based access control for 2026 →
Policy based access control: are role-only controls keeping up?
Explore further
13/06/2026 12:29 am
PBAC is not a substitute for identity lifecycle discipline. Policy logic can narrow access at decision time, but it cannot correct poor joiner-mover-leaver processes, stale entitlements, or unmanaged credentials. That matters because many organisations use contextual controls to compensate for weak underlying governance. The implication is that PBAC should be judged as a decision layer, not as a lifecycle control.
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 5.7% of organisations have full visibility into their service accounts, which means many identity teams are still governing non-human access without a complete inventory.
A question worth separating out:
Q: Who should own policy decisions when access is based on context?
A: Ownership should sit with the identity and security teams that can govern both the rules and the data behind them, with application owners accountable for business exceptions. Without clear ownership, policy decisions become fragmented, and the organisation loses traceability for why access was granted or denied.
👉 Read our full editorial: Policy based access control exposes the limits of role-only IAM
