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 |
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 |
| Nx s1ngularity: malicious npm packages drove local AI coding CLIs to enumerate secrets for exfiltrationmajor · earliest source 2025-08-27 | security breach | major | 2025-08-27 |