Running workloads across AWS, Azure, and GCP brings flexibility, but it multiplies risk. Each platform has its own identity model, role definitions, and API surface. Misaligned permissions between clouds create hidden attack paths. One engineer with excessive rights in multiple environments can bypass checks and act without review. In regulated industries, this breaks compliance before anyone notices.
Multi-cloud separation of duties enforces strict boundaries. No single person should have the privileges to deploy, approve, and monitor the same resource across all clouds. This requires consistent policy design. Use centralized identity governance to define role templates, then map them to cloud-native roles. Ensure that keys, tokens, and IAM grants are scoped narrowly and expire quickly.
Audit logs must span all providers. Centralize them in a tool capable of correlating events from multiple APIs. Watch for patterns where one identity is performing high-risk actions in more than one cloud in a short time. Configure alerts to detect privilege escalation and cross-cloud movement.