The Danger of Quizzes

With each question in the ACLU's Privacy Quiz, you're not only told what information a quiz author can see - you're shown it. For example, after answering the first question, you learn that almost everything on your profile, even if you use privacy settings to limit access, is available to the quiz. Then, a graphic is shown which reveals selected information retrieved from your profile including hometown, groups you belong to, events attended, favorite books, and more.