very useful site for checking for login / password / email breaches

[Defsync]

My antivirus pointed out my login credentials have been compromised when I went to access this site on my main comp today (it has been a year since Ive logged on). Chrome does this automatically now, though it does not know WHAT site the login has been compromised on, only that the login itself has been compromised SOMEWHERE (I do use this user ID in a couple other places).

In addition, Im linking the following site, which is very useful in finding out if your EMAIL address has been compromised. I use it a couple times a year just to be sure https://haveibeenpwned.com/ (the name is kind of immature, but it is a 100% legit site).