Find out which sites you're visiting have been pwned, using the haveibeenpwned.com database
Breached is a browser extension that lets you know when you're visiting a site that has been pwned in the past. You can click the button to find out more about those breaches.
Breached uses [Have I Been Pwned](https://haveibeenpwned.com/) to learn about breaches. No information about the sites you visit is sent anywhere -- all checks are local.