Having known two people from these industries, I've concluded that the U.S. falls third in security precautions to the following two:
Number 2 - the gaming/animation industry - there's a lot of overlap between the two. And a heck of a lot of security. Very few unintentional leaks, too for all the games and films that are made. I think they come after you and kill you if you commit a tech leak.
But the all time number one in security - Ma Bell or her equivalents in telecommunications.
If you see a building with no signs or indications of what's inside, no windows, one door and a parking lot, suspect telecommunications. I dated a woman who worked in this place and they actually had no lobby. I wanted to bring her lunch and she said there was no place to leave it. They would not take it at the door and there was no lobby. Based on having taken her to work a few times, I have been able to spot these in almost every city where I have lived.