"Mining small details from Facebook has become even easier with Graph Search, the site's new search engine that returns personalized results from natural-language queries. Graph Search granularly mines Facebook's vast user data: where people have visited, what they like and if they share those same preferences with their friends. 'FBStalker' is a Python script debuted at the Hack in the Box security conference in Kuala Lumpur. In its current form, FBStalker runs in the Chrome browser on OS X, entering queries into Facebook's Graph Search and pulling data. Even if a person's profile is locked down to strangers, their friends' open profiles can be examined, giving an indication, for example, who the person may be close with. FBStalker uses Graph Search to find photos in which two people are tagged in, comments on profiles and more."