Cloud exposure is the set of cloud assets, settings, and permissions that are reachable or overly open to an attacker. It includes misconfigurations such as public storage buckets, internet-facing services, weak network controls, and identities with excessive privileges. In practice, exposure is not just about whether something is online; it is about whether it can be discovered, accessed, and abused from outside the intended trust boundary.
This matters because cloud environments change quickly and often span many accounts, services, and vendors. A single exposed asset can become the first foothold for credential theft, data theft, privilege escalation, or lateral movement. Defenders reduce cloud exposure by continuously inventorying assets, checking configuration drift, enforcing least privilege, segmenting networks, and reviewing attack paths. In security tools, cloud exposure analysis helps teams prioritize the issues that most directly increase real-world risk, rather than treating every alert as equal.