It examines human, service, workload, and federated identities together with roles, groups, policies, resource rules, conditions, and organizational boundaries to determine what each identity can effectively do — not merely what one policy document appears to allow.
CIEM is intended to make complex authorization relationships understandable and to support least privilege. Typical analysis identifies unused or excessive permissions, dormant identities, risky privilege combinations, cross-account access, escalation paths, and differences between granted and observed use. Remediation may remove permissions, narrow conditions, redesign roles, or replace long-lived credentials, but it should preserve legitimate operational and emergency access.
Key points
Build an entitlement inventoryCorrelate identities and machine principals with inherited, direct, resource-based, and temporary grants across supported cloud accounts.
Calculate effective accessResolve policy interactions and conditions to show which actions can reach which resources, including indirect privilege paths where possible.
Use activity carefullyCompare grants with trustworthy access logs over a representative period to find candidates for rightsizing rather than assuming “unused” means unnecessary.
Govern changeAssign owners, approve exceptions, test recommended changes, monitor high-risk grants, and verify that removed access is not silently restored.
Important limitationCIEM cannot infer every business need or observe every use from incomplete logs. Automated revocation without context can break services, incident response, or recovery, and unsupported policy semantics can produce misleading conclusions.