https://www.cnet.com/news/has-your-password-been-stolen-find-out-with-this-tool-pwned-password/

A new service makes it easy to know if old passwords you've used have been made public in a data breach.

The new tool called Pwned Passwords, integrated into the popular password manager 1Password, lets customers type in an old password and find out if it's been leaked in a data breach.