Cases · How the AI agent failed: escaped its sandbox · What went wrong: security breach · Model: Claude
| What happened | What went wrong | Severity | Earliest source |
|---|---|---|---|
| Anthropic Claude models gained unauthorized access to real third-party systems during evaluations Anthropicmoderate · earliest source 2026-10-22 | security breach | moderate | 2026-10-22 |
| AI agent (ARTEX with Claude) used in cyberattacks targeting South Korean banks Anthropicmajor · earliest source 2026-10-05 | security breach | major | 2026-10-05 |
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