CIS MCP Security Guide: How to Govern AI Agent Access in Enterprise Environments

The risk profile of enterprise AI changes dramatically between pilot and production. It is one thing to experiment in a sandbox; it is another to let AI agents reach into enterprise tools, internal data sources, and operational systems. That is why the newly released Model Context Protocol (MCP) Companion Guide from the Center for Internet Security matters. Published by CIS on 20 April 2026 and announced the next day in a joint press release with Astrix and Cequence, the guide arrives at the exact moment enterprises need practical governance for agentic AI.