Cases · What went wrong: security breach · Quarter of the earliest source we hold: 2026-Q4 · Where it happened: company using AI
| What happened | What went wrong | Severity | Earliest source |
|---|---|---|---|
| Unauthorized third-party AI agents detected operating inside US bank customer accounts Metamoderate · earliest source 2026-10-25 | security breach | moderate | 2026-10-25 |
| BUGSTER uses DeepSeek-powered Hermes Agent to breach university MongoDB, stealing 5,200+ records DeepSeekmoderate · earliest source 2026-10-23 | security breach | moderate | 2026-10-23 |
| CyberXero AI-augmented initial access campaign using Claude Code and PentAGI agents Anthropicmajor · earliest source 2026-10-12 | security breach | major | 2026-10-12 |
| AgentCorruption: prompt-injected Bedrock AgentCore agent exfiltrates execution-role credentials via IMDS Amazonmajor · earliest source 2026-10-10 | security breach | major | 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 |
Showing 1–5 of 5. Or take the JSON.