What planet are you living on? What has happened so far is that people got caught with misuse of company assets. Try opening up your little employee guidebook, it is spelled out.
Punishing those who did so is really stupid? What do you think due process for them should be? Maybe some little golden keyboard reward for being clever? This is so not about security or crippling the US daily operation. It is about the "buddy" system that was in place with a touch of , we can beat the system and since we can we will, meglomania thrown in.
And if you want another viewpoint of how disappointing and distastful this whole little chapter is....ask any pilot what they think should be done to someone who messes with the scheduling system for their advantage.