MXC - a sandboxed code execution system

Microsoft’s MXC is a cross-platform, policy-driven sandbox for executing untrusted code, designed to contain model outputs, plugins, tools, and other third-party workloads on Windows, Linux, and macOS. For CIOs and technology leaders, this lowers the operational and security risk of adopting agentic AI and extensible applications by standardizing isolation, access controls, and diagnostics across environments—potentially reducing the custom engineering needed to safely run untrusted code at scale. IT organizations should view it as an enabling control layer that can accelerate AI and automation initiatives while improving governance, but it will still require policy tuning and backend selection aligned to platform and compliance needs.