: The extension exploited a logic flaw in the "Mutual Friends" feature. If you had at least one mutual friend with a target user, the extension would scan for other connections that were technically "hidden" but still accessible through various metadata and mutual links.
: Facebook has largely patched the Graph Search vulnerabilities that powered these mappers. Defunct Variants
The tool became popular around 2015 when security researchers highlighted a "logical flaw" in Facebook’s system. It proved that privacy settings only applied to the user's
Stay safe, stay skeptical, and protect your digital life.

