This Site's Been Breached! is a free Chrome extension developed by Gordy Goodnight. It falls under the category of Browsers and specifically belongs to the Add-ons & Tools subcategory.

The main purpose of this extension is to detect if the website you are currently visiting has been affected by a recent data breach. It provides a notification if the site has been compromised and offers information about the breach, including an estimate of the number of people affected.

This Site's Been Breached! serves as a reminder for users to reset their passwords on vulnerable sites. It also allows users to dismiss breach warnings, but it automatically detects if a dismissal becomes outdated due to new breaches and displays the warning again when necessary.