Comment by crabbone

Part of my day job is to set up testing of our product in air-gapped environment. It's not difficult. There's a straightforward way to ensure no connection to Internet (we use KVM, so, I just edit the VM description and remove the NIC from it). It's not any kind of rocket science. The tests then communicate over serial console.

The reason we have to test it isn't because our product would randomly break into someone else's system, but because it's meant to be sometimes deployed in systems disconnected from the Internet and we need to make sure the image provided contains all the necessary parts to create and operate such a system.

The whole setup where they "tried" to isolate the test but failed is laughable. It's like if an adult tried but failed to tie their shoelaces.