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17/08/2026 4:40 pm
TL;DR: Attackers still move from lower-tier access into control-plane systems, so the Enterprise Access Model must expand beyond Microsoft-centric boundaries to cover AWS, Google Cloud, SaaS admin portals, and DevOps pipelines, according to Clarity Security. The core issue is not tiering itself but whether identity governance can consistently classify, isolate, and review privileged access across a mixed enterprise stack.
NHIMG editorial — based on content published by Clarity Security: Enterprise Access Model governance across cloud and SaaS resources
By the numbers:
- When AWS credentials are exposed publicly, attackers attempt access within an average of 17 minutes , and as quickly as 9 minutes in some cases.
Questions worth separating out
Q: How should security teams tier cloud and SaaS administrative access?
A: They should classify any system that can change identity, infrastructure, or policy as Tier 0, even if it sits outside the original Microsoft model.
Q: Why do traditional tiering models break in multi-cloud environments?
A: They break because different platforms use different role models, trust relationships, and audit paths, so a static tier list does not capture how privilege actually moves.
Q: What do organisations get wrong about privileged tiering?
A: They treat tiering as a documentation exercise instead of an operating control.
Practitioner guidance
- Expand Tier 0 definitions across platforms Include cloud management consoles, identity providers, SaaS admin portals, and pipeline systems in the privileged tiering model so control-plane access is not left outside governance.
- Map administrative trust chains Document which Tier 0 identities can administer other systems across cloud and SaaS boundaries, then review those trust relationships as attack paths rather than convenience links.
- Automate tier tagging and recertification Use identity governance controls to tag high-value resources continuously and trigger access reviews when new admin planes or federated dependencies appear.
What's in the full article
Clarity Security's full article covers the operational detail this post intentionally leaves for the source:
- How the Enterprise Access Model is expanded across AWS, Google Cloud, SaaS, Linux, and hybrid infrastructure.
- Examples of tier tagging and policy enforcement patterns for control-plane resources.
- Operational guidance for centralised identity governance across Microsoft and non-Microsoft environments.
- The article's discussion of automated tagging and single-pane visibility for tiered resources.
👉 Read Clarity Security's analysis of Enterprise Access Model governance across cloud and SaaS →
Enterprise Access Model for cloud and SaaS: is your tiering model complete?
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17/08/2026 4:46 pm
Cross-platform tiering is now a governance requirement, not a Microsoft pattern. The enterprise access model only works when it follows the actual control planes that govern cloud, SaaS, and hybrid environments. If Tier 0 stops at directory services, the model misses the systems attackers can use to rewire the rest of the estate. Practitioners should treat tiering as an enterprise identity control, not a platform-specific taxonomy.
A few things that frame the scale:
- 85% of organisations lack full visibility into third-party vendors connected via OAuth apps, according to The State of Non-Human Identity Security.
- The same research found that 45% of organisations cite lack of credential rotation as the top cause of NHI-related attacks, with inadequate monitoring and over-privileged accounts each cited by 37%.
A question worth separating out:
Q: Who is accountable when privileged access is shared across multiple platforms?
A: The accountable team is the one responsible for entitlement approval, revocation, and evidence retention across the full privilege lifecycle. If identity, device, and application teams each own a different step, accountability becomes fragmented and audit outcomes get weaker, not stronger. Central governance needs one decision owner even if controls are distributed.
👉 Read our full editorial: Enterprise Access Model governance must now span cloud and SaaS tiers
