Back in the early cretaceous period – ok, make that 2006 – users of Facebook thought they were using a private social network. As a result they did all sorts of things which they probably wouldn’t have made public. Of course, now we know that Mark Zuckerberg believes that “if people share more, the world will become more open and connected”. In plain English that means Facebook wants to open up much of your data to the outside world, assuming you haven’t gone through your privacy settings with a fine-toothed comb. And as we all now know “Public” on Facebook effectively means “On Google”. Now, London-based developer Tom Scott has created a Web app called, simply, Evil which randomly displays the private phone numbers of unsuspecting Facebook users.