So far the claim is "an unauthorized person's name was entered into the log of people who were present for a secure software update conducted by Dominion employ

So far the claim is "an unauthorized person's name was entered into the log of people who were present for a secure software update conducted by Dominion employees" and not "rando unauthorized person to be alone with one of your machines." If someone seeing an update executed compromises the machines, that's a HUGE problem. But I think you're spot on with the slot machine comparison. In a casino, asking security to turn off the cameras monitoring an area would be a breach in itself. They wouldn't do it and would report someone who requested it. In this situation, "how could an official could order it?" and "why did the security team do it?" are both things to look into. Was this standard operating procedure? If so, for how long and when else did it occur? And broader, are there other jurisdictions where they had similar security lapses? If so, when, where, and for how long? Further, were those machines also removed from service and analyzed?