Every secure API draws a line between code and data. HTTP separates headers from bodies. SQL has prepared statements. Even email distinguishes the envelope from the message. The Model Context Protocol (MCP), the fast-growing standard for connecting AI agents to external services, inherits that gap from the models it sits on top of. Its central [...]

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Chandler Johnson

Source: Security Boulevard
Source Link: https://securityboulevard.com/2026/04/attacking-the-mcp-trust-boundary/