Intelligence is unique because it is permanent and persistent. It never gets reset back to 1. However, gaining Intelligence experience is extremely slow. The methods of gaining Intelligence exp is also hidden. You won’t know when you gain experience and how much. It is a stat that gradually builds up as you continue to play the game.
Intelligence will boost your production for many actions in the game, including:
- Hacking Missions
- Crime success rate
- Reputation gain for companies & factions