A sandbox without a network boundary is only half a sandbox

Running untrusted code safely requires more than separating it from the host. You also have to control what that code can reach. This matters more as AI agents gain the ability to read files, execute commands, install packages, and generate programs of their own. A microVM can prevent that code from accessing the host or another workload. By itself, it cannot stop the code from exfiltrating data, probing internal services, attacking systems elsewhere on the internet, or using credentials available inside the environment. Isolation without egress control contains the process, not its consequenc