How would I know if my login to a company website was hacked?
After a bit of research, I found this website: Have I Been Pwned. The word “pwned” is a corruption of the word “owned.” It means to utterly defeat someone, or in this case, “have I been utterly defeated?”
You can enter your email on the website, and it will tell you if your email and personal login information are floating around the Internet. Hackers post lists of millions of other people’s email addresses and passwords online, and HaveIBeenPwned.com keeps track of most of them.