SaaS sprawl is the uncontrolled growth of software-as-a-service tools inside an organization. It includes approved applications bought by teams and shadow apps adopted without IT approval. Over time, the business may end up with dozens or hundreds of connected services, each with its own users, permissions, data stores, and integrations.
This matters because every extra SaaS app expands the attack surface. Sprawl creates weak visibility, duplicate identities, overprivileged access, and forgotten third-party connections. In real attacks, an overlooked app or integration can become a path to sensitive data or a place where stolen credentials still work. In defense, SaaS security posture management tools try to discover these services, map who can access them, and flag risky settings, stale accounts, and compliance drift. The key security challenge is not just counting apps, but understanding which ones exist, who controls them, and how much trust each one has been given.