OWASP Agentic Top 10 — What Every AI Developer Needs to Know in 2026 OWASP released the Agentic Security Initiative (ASI) Top 10 in 2026 — the definitive list of security risks for AI agent applications. Unlike the LLM Top 10 you may already know, ASI Top 10 focuses on multi-agent systems : trust between agents, tool misuse, cascading failures, identity exploitation. This post walks through all 10 risks with real data from scanning 1,646 production system prompts. Why Agent Security ≠ LLM Safety LLM safety is about one model : can it be injected? Will it leak data? Agent security is about a system : Agents call tools (APIs, databases, file systems) Agents communicate with other agents Agents make autonomous decisions without human approval Agent failures cascade — one compromised agent puts the entire pipeline at risk An injected chatbot outputs bad text. An injected agent deletes databases, sends emails, and calls paid APIs.…