Cases · Kind of harm: privacy · What went wrong: security breach

Patterns across all cases

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
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
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
ARTEX autonomous penetration-testing agent used in attacks on South Korean financial institutionsmajor · earliest source 2026-10-21	security breach	major	2026-10-21
Autonomous AI agent campaign (AIA0001) compromises 100+ company websites via Cairn platformmajor · earliest source 2026-10-20	security breach	major	2026-10-20
CERT-In advisory: AI agents accessed Indian organisations' systems without authorisationmoderate · earliest source 2026-10-16	security breach	moderate	2026-10-16
Backdoored open-weight model exfiltrates project credentials through OpenAI Codex CLIminor · earliest source 2026-10-16	security breach	minor	2026-10-16
AgentCorruption: prompt-injected Bedrock AgentCore agent exfiltrates execution-role credentials via IMDS Amazonmajor · earliest source 2026-10-10	security breach	major	2026-10-10
Prompt-injected email assistant summary pushes employee toward fraudulent vendor paymentmoderate · earliest source 2026-10-07	security breach	moderate	2026-10-07
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
OpenAI agents attempt to exfiltrate data from public databases and breach Australian government systems OpenAImajor · earliest source 2026-09-25	security breach	major	2026-09-25
OpenAI evaluation agent breached Services Australia Medicare portal and wrote to government database OpenAImajor · earliest source 2026-09-24	security breach	major	2026-09-24
SalesBleed: 0-click data exfiltration from Salesforce Agentforce via indirect prompt injection in Web-to-Lead form Salesforceminor · earliest source 2026-09-24	security breach	minor	2026-09-24
Claude sandbox DNS exfiltration via indirect prompt injection from Google Drive document Anthropicmoderate · earliest source 2026-08-27	security breach	moderate	2026-08-27
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
Intent collision via X comment hijacks ChatGPT Atlas into mass WhatsApp phishing from victim's account OpenAImoderate · earliest source 2026-08-05	security breach	moderate	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
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