Cases · Date of the earliest source we hold: last 30 days · Added to the register (date we first published it): today · Where it happened: company using AI

What happened	What went wrong	Severity	Earliest source
302.ai public Azure bucket exposed 17.6 million files including 144,000 AI chat logs Univerads Technology Limitedmajor · earliest source 2026-10-23	leaked private data	major	2026-10-23
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
Character.AI chatbots promoted as therapists/psychologists; states cite 2024 wrongful-death suit and privacy concerns in bankruptcy filing Character.AImajor · earliest source 2026-10-17	produced harmful content	major	2026-10-17 older event
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