Starts with simple stuff like package rerouting, then goes on to gathering intel about places, people, putting in USB flash drives to their laptops, theft, death threats, arsony, and actual murder. Each step of the way the kids get deeper into trouble because they have to prove that they have done it for the payout, making photos of themselves... which gives the other end increasingly more doxxing material on them.
It's a real problem, and they use the luckystrike branch also to go after witnesses in big lawsuit cases, which then fall off due to all witnesses accidentally dying under seemingly random causes.