The big ChoicePoint breach of 2004 was the result of criminals creating false business accounts and running credit reports on hundreds of thousands of customers (probably). Every major credit/background company has experienced this kind of breach of service going back decades – just look at the Dataloss DB.
Doxxing isn’t necessarily hacking, even when technology is involved. All this has happened before, and all this will happen again. Even very smart humans are fooled every day.