If your password for a non-Google website has been exposed, the Password Checkup extension can help let you know. That way, you can change your password for at-risk accounts to help secure them.
Password Checkup was built with privacy in mind. It never reports any identifying information about your accounts, passwords, or device.
Source #1: Google Chrome Store – Password Checkup Extension
Source #2: Google Account Help for Password Checkup Extension
