All kinds of source I'm sure—for example, the CIA has financed all sorts of black operations with drug trafficking since at least WWII. Now, that money would not be used to hire the rank and file, but it does relieve pressure on the budget.
Ransomware attacks come to mind. It wouldn't be hard to subcontract that out and keep even the hackers themselves from knowing who they're working for.
Ransomware attacks come to mind. It wouldn't be hard to subcontract that out and keep even the hackers themselves from knowing who they're working for.