Password Checkup helps you resecure accounts that were affected by data breaches.
Wherever you sign-in, if you enter a username and password that is no longer safe due to appearing in a data breach known to Google, you’ll receive an alert.
Seems to work instantly. Not sure if this is a good or bad thing.
Great idea to bring some peace of mind for security.
Does it really need to be an extension? I think a website would have been sufficient.