When to change password ?

In our daily routine of internet surfing so many times we enters user id and password. Sometimes it shows some illegal or suspicious activity that took place to access your id and password. In this case here one of the web site gives us indication that should you change password or not ? As web sites says that they are having database of the passwords in large number, those released by hackers publically. They just compare with it. If the match found  in that database, site suggest us to change password. You can check your here: https://shouldichangemypassword.com/