Given the evidence so far of hostile nation state involvement with this company (Dominion et al) I would not be surprised if there are built in anti forensics. Things like being able to manipulate file headers and change file times to hide “updates” and changes to files or things like overwriting memory to securely remove audit logs. I would also not doubt there are embedded hardware with it’s own WiFi or Bluetooth to overcome airgap controls. Just my hunch but that is what I would be looking for if I were investigating. I know the President will bring in a good team. Let’s hope they find the goods.