So in this situation... how can they find them? I wish they find them and people can recover funds but what if he runs coins through mixers?
Tracing coins through exchanges will lead you nowhere!The source of incoming coins would still be hidden if they're not part of a famous wallet which I believe hacker will be smart enough to not list any details on the blockchain.By now,the coins would be mixed already and maybe even I've a part of it bought through exchanges.