Consumers generally don't understand the risks of having their personal data floating around out there. A recent legal case filed in Ireland offers a hint of what some of the dangers are. In the lawsuit, Facebook was accused of creating "shadow profiles" of nonusers. Social media members who seek long-lost friends sometimes leave traces of their searches on the sites, including email addresses of nonmembers and the contents of messages to those individuals. The concern is that these data might include unverified information about nonmembers' "political opinions, religious or philosophical beliefs, sexual orientation, and so forth." Facebook categorically denies that it creates profiles of nonusers.