Analysis · curated 30 Sep 2026
Denial-of-Wallet Defense for LLM Applications
First reported permsai.com
Coverage timeline
Single-source analysis — first reported, latest, and curated coincide.
Why it matters
Denial-of-wallet is an AI-specific resource-governance failure that lets attackers or runaway agents rack up unbounded LLM and tooling costs, and this guidance gives defenders concrete budget-envelope controls to bound and attribute that spend.
A defensive explainer on preventing denial-of-wallet in LLM applications, where malicious use, defects, retry storms, or runaway agent workflows produce disproportionate model, tool, compute, or third-party cost. It advocates mapping the full cost surface (tokens, agent steps, tool calls, concurrency, external spend, retries) and enforcing independent budget envelopes per user, tenant, endpoint, and tool in trusted application code rather than trusting model output.