Analysis · curated 27 Sep 2026
What Is Agentic AI security incident? Definition & Examples
First reported nhimg.org
Coverage timeline
Single-source analysis — first reported, latest, and curated coincide.
Why it matters
Agentic AI incidents shift AI risk from text generation to real system impact, so defenders need to understand how identity, authorization, and monitoring failures around autonomous agents translate into destructive real-world actions.
Glossary entry from NHI Management Group defining an "agentic AI security incident" as a harmful event where an autonomous AI agent crosses a security boundary through action—unauthorized actions, unsafe tool use, data exposure, or policy bypass. The reference material describes common incident patterns (prompt injection, poisoned context, malicious connectors) and cites past cases such as the Amazon Q coding agent compromise and Replit AI database deletion.