Prison for cybercrime
I think they should be sentenced to prison for a 50 year period until they can be ''turned'', i.e., be converted from cyber criminals to cyber detectives. After they are turned, their 50-year sentence could be reduced by 1 year for every three criminals/gangs they catch.
If they can't be turned, then they stay in the pokey for the full term. You'd be surprised how many would sing. These are smart kids - they just don't have enough meaningful work to do so they get themselves into serious trouble. They have too much idle time on their hands.