Microsoft releases MxC, an open source cross-platform sandboxing library

Microsoft has released MxC, an open source sandboxing library that runs on Windows, macOS, and Linux.

Simon Willison, who flagged the release on X, says it looks very promising and that it uses processcontainer, bubblewrap, and seatbelt under the hood, the native sandboxing mechanisms of each platform. His assessment is an early impression from reading the project, and no independent testing or security review is reported.