Your Most Dangerous User Is Not Human: How AI Agents and MCP Servers Broke the Internal API Walled Garden
Security Boulevard, Thursday, February 19th, 2026
Last month, Microsoft quietly confirmed something that should keep every CISO up at night.
The Perimeter is Porous: Modern Agentic AI and the Model Context Protocol (MCP) have effectively turned internal data centers inside out, making the 'internal API' security model obsolete.
The 'Confused Deputy' Risk: Legitimate AI agents act as trusted internal entities but can be exploited to bypass Data Loss Prevention (DLP) policies, as seen in recent Microsoft Office vulnerabilities.
Beyond the WAF: Traditional WAFs and API Gateways are blind to lateral 'East-West' traffic and cannot detect the subtle behavioral anomalies inherent in AI-to-API interactions.
Salt's Three-Pillar Defense: To secure the Agentic Action Layer, organizations need continuous discovery, adaptive governance, and intent-based behavioral protection.