We Reverse-Engineered Docker Sandbox's Undocumented MicroVM API

Docker has released an undocumented microVM API within Docker Sandboxes that enables secure execution of untrusted code (AI agents, user scripts) with kernel-level isolation superior to containers—a significant shift in how organizations should architect workloads requiring code execution safety. This represents a foundational technology shift similar to Docker's containerization revolution, with strategic implications for IT organizations managing AI agents, multi-tenant SaaS applications, and secure CI/CD pipelines, though current platform limitations (macOS/Windows only, nested virtualization required) constrain immediate enterprise adoption. IT leaders must evaluate microVM-based sandboxing as the new security standard for untrusted code execution rather than relying on the insufficient isolation provided by containers.