That is exactly how they deal with that. They make them use offline non-admin computers with all the ports burnt off. If they need to look something up, then

That is exactly how they deal with that. They make them use offline non-admin computers with all the ports burnt off. If they need to look something up, then only a few trusted people can go to the 'internet' computer, where everything is recorded. For good measure, the offline employees are recorded too. But it's also incredibly inefficient compared to the average 10 person game studio. In the USA, nobody has to do that to make a computer game. You also missed the part of %80 of the staff walking away to start their own venture.