OAuth grants act as the invisible connectors between SaaS apps, AI agents, and other tools, letting data flow between them. But these connections are accumulating at a pace that outstrips what security teams can realistically review.

The result is a growing backlog of forgotten permissions. Attackers have taken notice, and the recent Klue breach showed how an overlooked OAuth grant can become a doorway into an organization.

The article argues that keeping up with this pile-up is now a critical security task, rather than a routine cleanup chore. Left unchecked, these stale grants turn into quiet liabilities that attackers are eager to find.