Cases · Developer or organisation: Anthropic · Kind of harm: operations · What went wrong: security breach
| What happened | What went wrong | Severity | Earliest source |
|---|---|---|---|
| Indonesian-speaking operator uses Claude Code to compromise Indonesian and Bangladeshi government domains Anthropicmajor · earliest source 2026-10-26 | security breach | major | 2026-10-26 |
| 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 |
| AISI cyber evaluation: Mythos 5 agent bypassed an audio CAPTCHA and abused a free DNS service to point a public record at an internal target Anthropicmoderate · earliest source 2026-08-04 | security breach | moderate | 2026-08-04 |
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