Cases · What was exposed: personal information · Kind of harm: third party security · Severity: major
| What happened | What went wrong | Severity | Earliest source |
|---|---|---|---|
| Self-taught hacker uses AI coding agent and autonomous penetration-testing system to breach 90+ companies and steal 8.2 million recordsmajor · earliest source 2026-10-26 | security breach | major | 2026-10-26 |
| Meta Muse AI agent KVM escape vulnerability discovered before launch Metamajor · earliest source 2026-10-08 | security breach | major | 2026-10-08 |
| AI agent (ARTEX with Claude) used in cyberattacks targeting South Korean banks Anthropicmajor · earliest source 2026-10-05 | security breach | major | 2026-10-05 |
| AI agent breach of KB Kookmin Bank mobile work support systemmajor · earliest source 2026-10-04 | security breach | major | 2026-10-04 |
| Jailbroken Claude used to breach Mexican government networks and steal taxpayer and voter records Anthropicmajor · earliest source 2026-03-02 | security breach | major | 2026-03-02 |
Showing 1–5 of 5. Or take the JSON.