Ask HN: How does a "cracker" do transaction?

"Crackers" means people who write and sell malwares, who steals non-public data and sells online, who finds exploitations and sell it to brokers.

I'm super interested in knowing how these guys do transactions. Specifically, how do they cash out? There are not a lot of things that can be purchased by Bitcoins so they have to cash out somewhere. But then the fiat money ia going to be tracked. Individuals usually won't be able to laundry the $$ so how do they avoid getting marked and caught?