https://haveibeenpwned.com/
That's a legit website that contains all the data from the major breaches and you can check to see if any of your info is out there. Year ago the Origin game platform had a mini breach and my email address and password was posted. I used to use the same fuckin password everywhere like most do. That's when I learned to use a damn password manager with a different random password for every site, and 2 factor auth on the password manager itself.
Security is easy people, just requires a little time and effort.