Agent Security
Denial of Wallet
Also: cost exhaustion attack
An attack that drives up the target's usage bill, such as tokens or API calls, until it hurts, rather than taking the service offline.
In more detail
Pay-per-use AI services make cost an attack surface. A public chatbot with no rate limits, or an agent stuck in a loop, can burn through a budget quickly. Per-user quotas, hard spend caps and anomaly alerts are the standard controls.