Where AI Agent Security Gets Enforced: A Comparison of Four Vendor Approaches

AI agent security is an active product market in 2026. This report compares four vendor approaches—BeyondTrust AI Agent Security, Zscaler Endpoint AI Security and AI Broker, Idira Secure AI Agents (Palo Alto Networks, formerly CyberArk), and SailPoint Agentic Fabric—each placing primary controls at different points in an agent's action lifecycle: governance time, connection time, or action time.

Where a control sits determines which activity it can observe and govern, shaping each architecture's strengths and coverage boundaries. The report illustrates this through a coding agent session and outlines criteria for evaluating enforcement points, endpoint coverage, attribution, and credential handling.