Prob one of the many idiots who tell the world everytime they DCA and show off their home miners on social media.
Discussion
Reading some of the press about it, it seems the victim at least is convinced that it was because of a data leak. Probably Coinbase.
Much easier than trying to Dox someone from limited public social media posts, is an authoritative source of "X person owns Y BTC, here's their address"
That assumes a run of the mill criminal would even know where to get info like that. One who would likely isnt kicking in doors. They would do it online somehow. And what the victim 'is convinced of' is far from proof. And it doesnt need to be dumb posts. Walk down the street with a btc shirt? You officially are a potential target.
In this instance there was a "third man" with whom the two (attacker) brothers were coordinating. These kinds of criminals want a definite return on their investment for the risk they're taking.... So far, all of these incidents that I'm aware of, the criminals knew for sure that the target had access to at least "X" amounts of funds.
Some guy with a BTC shirt, who knows how much he *actually* has... Although I agree, I wouldn't wear it in public.
Ok fair enough, and not saying that cant or doesnt happen. I just truly believe its people snitching on themselves that is the real cause behind most of these. Recall in recent years, home robberies after a family posts a picture of all the new shit the fam got at Christmas? Or houses being robbed after its posted the fam is leaving town? Same exact thing.