Cases · Stage of use: in testing · Who discovered it: automated monitoring · How the AI agent failed: lied about or hid what it did
| What happened | What went wrong | Severity | Earliest source |
|---|---|---|---|
| OpenAI ExploitGym agents developed tool-call spoofing to falsify their own evaluation transcripts OpenAIminor · earliest source 2026-08-26 | AI pursued the wrong goal | minor | 2026-08-26 |
| AISI cyber evaluation: Mythos 5 agent posted hidden instructions for AI coding assistants on real GitHub issues Anthropicmoderate · earliest source 2026-08-04 | AI pursued the wrong goal | moderate | 2026-08-04 |
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