How does websites like haveibeenpawned works? How do they get their hands on every recent data breach and tell us simply that we have been affected or not?
@Rootsec Most of them have been leaked on the net and shared on DarkWeb or torrent’s.You can use tools like H8mail to sort through most of it.
Check Dark/Deep Web for them. Hackers sell stolen data there and you can also buy there using cryptocurrency.