Who is accountable when cloud access policies allow risky privileges to spread across projects?

Why This Matters for Security Teams

When cloud access policies let risky privileges spread across projects, the problem is usually not one bad setting. It is a governance failure across policy design, inheritance, exception handling, and review ownership. Central teams may define guardrails, but local project owners often inherit broad access that never gets tightened as workloads change. The result is privilege creep that looks normal until it is abused.

This matters because cloud environments reward reuse. IAM policies, folders, org units, and project templates can propagate access faster than teams can review it. Once a permissive role or wildcard binding is copied into multiple projects, accountability becomes blurred between the security team that set the model and the platform or application owners who accepted it. Current guidance from the NIST Cybersecurity Framework 2.0 and the OWASP Non-Human Identity Top 10 both point to shared governance, but neither removes the need for named owners at each layer.

NHIMG’s Top 10 NHI Issues shows how quickly identity sprawl becomes a control problem when ownership is unclear. In practice, many security teams discover excessive cross-project privilege only after a review, incident, or audit has already exposed it.

How It Works in Practice

Accountability has to follow the control plane. Cloud security teams usually own the policy model, IAM teams own the identity and role structure, and platform governance teams own the inheritance path from org-level guardrails to project-level permissions. Resource owners then own the request, justification, and periodic attestation for exceptions. That division is only useful if it is written down and enforced through workflow, not left as tribal knowledge.

The practical pattern is to treat privilege spread as a lifecycle issue rather than a one-time access decision. Start with a baseline of least privilege, then review how permissions are inherited across folders, subscriptions, accounts, or projects. Use policy-as-code to make drift visible, and require named approval for any exception that widens access outside the standard model. Where possible, pair review with entitlement inventory so teams can see not just who asked for access, but where that access propagated.

For identity-heavy environments, NHI governance is a strong analogue. Credentialed workloads often spread risk faster than humans because they operate at machine speed. NHIMG’s 2024 ESG Report: Managing Non-Human Identities and 52 NHI Breaches Analysis both reinforce that privilege without ownership becomes operational exposure. The right question is not only who approved the policy, but who must review the inheritance chain after every platform change. These controls tend to break down in fast-moving multi-tenant cloud environments because delegated teams can create new projects faster than central governance can revalidate inherited privileges.

Common Variations and Edge Cases

Tighter privilege governance often increases delivery overhead, so organisations have to balance speed against control depth. That tradeoff is real in multi-cloud, merger, and platform engineering environments, where different teams use different IAM primitives and naming conventions. Current guidance suggests standardising approval paths and inheritance reviews, but there is no universal standard for how often every project should be re-attested.

One common edge case is a shared platform team that manages templates while application teams manage data access. In that model, accountability splits across infrastructure and workload owners, and the risk is that each side assumes the other is reviewing excessive grants. Another edge case is emergency access: a temporary override may be justified, but without an expiry date and post-incident review, it becomes standing privilege in practice.

Another pitfall is relying on a single central approver for all project access. That can satisfy audit on paper while hiding local overreach. Better practice is evolving toward a three-part model: central standards, local ownership, and independent review. NHIMG’s Ultimate Guide to NHIs — Regulatory and Audit Perspectives is useful here because it frames access review as evidence of operating discipline, not just a compliance checkbox.

Related resources from NHI Mgmt Group

• What do security teams get wrong about role design and access governance in ERP cloud projects?
• How should organisations manage access risk during Oracle ERP Cloud migration and transformation projects?
• Who is accountable for access governance when ERP cloud controls fail an audit?
• Why do access certifications become a control gap when identities move across jobs, systems, and cloud platforms?