Least Privilege Report 2026 [Oso x Cyera]

2 min read Original article ↗

AI Agents Will Inherit the Entire Permission Surface

For human users, unused permissions often remain dormant. AI agents change that dynamic completely.

When agents inherit existing user permissions, they gain access to the entire permission surface — not just the subset employees normally use. An AI agent operating with a typical employee account could immediately:

Access sensitive data the employee never viewed

Modify records the employee never opened

Export information the employee never downloaded

Because agents operate continuously and at machine speed, the dormant 96% of permissions can quickly become active exposure.

The Result: Dormant Access Becomes an Automated Security Risk

Enterprise permission models were designed for humans operating within natural limits. AI agents remove those limits. Instead of a small portion of permissions being exercised occasionally, agents can systematically execute any capability available to them — turning latent configuration problems into active security incidents.

Three Implications for Enterprise Security

Unused permissions represent unnecessary exposure. When the vast majority of permissions remain unused, organizations can reduce risk significantly by identifying and eliminating dormant access without disrupting normal operations.

The real risk lies in access to sensitive data and high-impact actions.

Permissions that allow data modification, bulk export, or unrestricted visibility across datasets determine the potential blast radius of both operational mistakes and malicious activity.

Autonomous systems require purpose-built access models. Agents should not inherit broad human permission bundles. Instead, their access should be narrowly scoped to the specific systems, data, and actions required for their tasks.

Access governance must evolve from static configuration to continuous visibility and control. As organizations introduce autonomous systems into their environments, understanding where sensitive data resides, who — or what — can reach it, and how that access is exercised becomes essential to operating safely at scale.