This was the most realistic hacking simulator out there. The game was played typing in real commands in a simulated terminal, but there was also some "outside" actions you could take like going to a building with a laptop to connect into their network.
You could do various other things like make your own viruses, buy guns, etc... It had a lot of content and was very fun!
They've published their game for free on the internet archive since, but it would be nice to have a kind of remaster if possible, as I couldn't run it on windows 10.