[NEWSLETTER]score: 0.96

Microsoft MXC Sandboxes Agentic Code at OS Level with Multi-Backend Support

June 9, 2026

Microsoft's MXC, announced at Build 2026, runs untrusted and agentic code in OS-level sandboxes rather than application-level containers, supporting AppContainer, disposable VMs, WSL microVMs, NanVix microVMs, bubblewrap namespaces, and macOS Seatbelt. The platform-agnostic design lets developers choose isolation backends based on trust level and performance requirements.

HOW THIS AFFECTS YOU

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builderYou can use MXC to isolate untrusted agent-generated code at the OS level across Windows and macOS without rolling your own sandbox infrastructure.

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founderOS-level sandboxing from Microsoft raises the baseline security expectation for agentic code execution, pressuring third-party sandbox vendors.

read original ↗originhq.com

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