I still cringe about multiple 'turn on the computer' scenes in Tel Aviv, where 'turn it on' obviously (..) wasn't satisfied by pressing the button, nor by logging in: I had to 'open a file, just any file' (the clueless guys would be impatient by now, being annoyed by my failure to understand this useless requirement). Usually I chose a default windows wallpaper -> Done.
Braindead, waste of time.
Login screen simulators are old tech. Friends of mine used to run them on the terminals at the college I studied at in the 80s to harvest other student's account details. Nowadays they're a lot more sophisticated. If you think you know more about security than the Israelis you're sadly mistaken.
The entire "turn on the computer" check is idiotic security theater. Either they can tell if there is a bomb in the computer anyway through other means (in which case why are they bothering to do that check?) or they cannot (in which case, how can they possibly hope to catch anything?). My money is obviously on the first.
Asking people to turn on their computers is like a doctor taking your temperature with the back of his hand on your forehead.. right before actually using the digital thermometer anyway.
You do realize that the process I'm talking about happens after they (always.. always.. sigh) x-rayed your belongings like everywhere else and (this is special, I get that treatment every time) polished all my electronic equipment with their 'sniffer' pads for traces of whatever explosives I might've built into my laptop?
That totally ignores that both times that I had to do this weird 'proof it works' dance by .. clicking myself, doing what came to my mind (and what I considered nonsense). If your world allows for a cramped micro controller that kind of simulates an OS booting, plus the login screen: Hey, let me raise you a Raspberry Pi in a laptop case, that __actually_ runs a full operating system.
It's bullshit, there's no way to make it better.
Disclaimer: I like the country, love Tel Aviv and certainly don't claim to be an expert on terrorism. But I can recognize IT related crap when I see it.