How would the country’s internal intelligence services know what’s happening? Yes, by spying. That’s literally their job and they have assets in every critical area in a country. Every institution, every major industry player, they are monitored to a degree by the internal intelligence in every country in the world. There are more nefarious reasons to do this but the ostensible one is that if it’s of strategic importance the country needs to know everything there is to know.

The companies also do a lot of spying themselves, every bit of info could give them an edge.