Industrial espionage is serious chit. Visited one of our avionics supplier
In Canada. They briefed me first thing that I had to be accompanied at all times; even to the bathroom. Said if I was caught unaccompanied, they would have me escorted from the building to the awaiting PoPo.
Said they had some Chinese visitors that tried to get into a secured area. They claimed language barrier as their excuse, but it was discovered they they were spies.
They don't play.
Could tell similar stories here...but can't.