AI Agent Security: Securing Autonomous Agents in Production

Autonomous AI agents are moving from research labs into production environments at speed. Unlike chatbots that respond to single prompts, agents plan, reason, execute multi-step tasks, call external tools, and delegate sub-tasks to child agents. With each of these capabilities comes a new attack surface - and the stakes are higher because agents act, not just talk. The Three-Tier Agent Threat Model Every production agent system shares a common architecture with three security tiers. Understanding this model is the first step to securing your deployment. Tier 1 - The Agent Brain.