Rawling is a computer virus that attacks a person's Cortical Stack as well as AI's. It corrupts the information stored in both, making them useless. If a person hasn't backed up their Stack, they are lost. Rawling can even infect offsite backups of a Stack if a Stack is infected during backup. If a Stack is infected while in a living person, it drives the person insane. It also drives AI's insane before it melts their cores.
- It was used against the AI, Dick, in order to convince Laurens Bancroft that he committed suicide due to his own stack's having been infected.
- Used by C.T.A.C. against the occupants of Stronghold, in order to secure a win in the Battle of Stronghold.