Ethan was a "Dorker"—a specialist who used advanced search queries, or "Google Dorks," to find things that weren't meant to be public. His favorite target was the simple string: intitle:"index of" "wallet.dat" . This command forced search engines to look for open directories on websites where users had accidentally uploaded their entire Bitcoin Core folder.
Ethically, if you discover an exposed wallet.dat file during research, the responsible actions are: