RE: Hackers Have Stolen About 14 Percent of Big Digital Currencies
And another way they're accessing people's information is via credit card skimmers. I just posted about a guy who recorded himself literally pulling one of them from a local ATM he frequented.
Once they have your card information, they basically have your personal information, as well as spending locations. If you've got Coinbase laced all up and down your transaction history, it's only a matter of time before they simply follow the breadcrumbs.
Blockchain only works if they don't have your private information. They find out what email you've attached to your bank. Then, they find out you've also got your crypto receipts coming to that same email. From there, it's just "following the yellow brick road." ESPECIALLY if you also have your phone attached to the same email. Lol.