Protecting your data, no matter where you go on the web
> We help keep your Google Account safe by proactively detecting and responding to security threats. For example, we already automatically reset the password on your Google Account if it may have been exposed in a third party data breach—a security measure that reduces the risk of your account getting hacked by a factor of ten.
> But we want to provide you with the same data breach protections for your accounts, beyond just Google apps and sites. This is where the new Password Checkup Chrome extension can help. If we detect that a username and password on a site you use is one of over 4 billion credentials that we know have been compromised, the extension will trigger an automatic warning and suggest that you change your password.