MXC Internals: How Microsoft's eXecution Containers Actually Isolate Agent Code
Summary
The article surveys Microsoft's MXC project, a dispatcher that routes untrusted code execution requests to ten containment backends across Windows, Linux, macOS, and other environments. It explains how policy is expressed once and translated into native enforcement across backends, and it notes the experimental status and the mix of kernel-enforced versus cooperative controls. The piece highlights how this architecture aims to unify policy for sandboxing and isolation of untrusted code.