A hybrid cloud is an environment that combines on-premises systems with public and private cloud resources. Organizations use it to keep some workloads close to internal data or legacy systems while taking advantage of cloud scale, managed services, and flexibility for other tasks.
In cyber security, hybrid cloud matters because control becomes more complex when identity, storage, networking, and logging are split across multiple platforms. Attackers may exploit weak links between environments, such as overprivileged accounts, exposed APIs, or inconsistent policy enforcement. Defenders use hybrid cloud controls to apply least privilege, centralize monitoring, and keep audit trails across workloads. For autonomous AI agents, hybrid cloud adds another challenge: the agent may be able to act in different systems, so permissions and traceability must be designed consistently everywhere it runs.