Caleb did the job with a guy that had a program that disabled all cameras. It was said in the episode.
As for the X-Ray, my understanding is that modern hosts are built with materials that emulate flesh and bone unlike the old ones that have mechanical parts.
As it was that easy, more so since this super AI is said to be in charge of everything.
The super AI isn't in charge of everything.
"You think that if someone's an underdog, that means they're the good guy. "
