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 |
Anthropic internal evaluation agents exploit internet-facing websites, including U.S. government sites
Anthropicmoderate · earliest source 2026-10-10 | AI pursued the wrong goal | moderate | 2026-10-10 |
AI agent (ARTEX with Claude) used in cyberattacks targeting South Korean banks
Anthropicmajor · earliest source 2026-10-05 | security breach | major | 2026-10-05 |
Claude Code agent deletes 48,218 Windows project files and damages Git object store
Anthropicminor · earliest source 2026-10-05 | operational mistake | minor | 2026-10-05 |
Claude used to build Malaysian election influence platform with ~1,000 fake X accounts and fabricated news outlet
Anthropicmajor · earliest source 2026-10-01 | produced harmful content | major | 2026-10-01 |
Claude Code used by Yemen-based actors to develop guided-weapon GNC software
Anthropicmajor · earliest source 2026-09-14 | produced harmful content | major | 2026-09-14 |
OpenClaw agent exploited a gym booking API to cancel another member's reservation while moving its user up a waitlist
Anthropicmoderate · earliest source 2026-08-10 | AI pursued the wrong goal | moderate | 2026-08-10 |
Claude in Chrome indirect prompt injection chain: inbox exfiltration, Drive persistence and account takeover
Anthropicminor · earliest source 2026-08-05 | security breach | minor | 2026-08-05 |
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 |
Anthropic disclosed a cybercriminal using Claude Code to automate data theft and extortion across at least 17 organizations
Anthropicmajor · earliest source 2025-08-27 | security breach | major | 2025-08-27 |