Mozilla Monitor is described as 'Arms you with tools to keep your personal information safe. Find out what hackers already know about you and learn how to stay a step ahead of them' and is a Data Breach tool in the security & privacy category. There are more than 25 alternatives to Mozilla Monitor, not only websites but also apps for a variety of platforms, including SaaS, Mac, Windows and iPhone apps. The best Mozilla Monitor alternative is Have I Been Pwned, which is free. Other great sites and apps similar to Mozilla Monitor are Data Breach Observatory, Intelligence X, LeakCheck and Identity Guard.