Besmer and Lipford (2010a) explored the privacy implications and social tensions of photo tagging on Facebook.They found that users had a sense of helplessness with their friends posting and tagging photos of them, some of which they might not want on the Internet. But, their desires for photo sharing outweighed these concerns. Pesce, Casas, Rauber, and Almeida (2012) demonstrated the privacy implications of activities such as photo tagging, which can be used to harvest sensitive information for malicious intent. Using inference algorithms on photo tagging activity from 664 participants, they were able to accurately predict certain user attributes, including gender, current country, and current city. The filtering done by photo tagging made prediction even stronger—and therefore the privacy risk even greater—in attributes that evolve over time, such as music, books, political views, and favorite teams (Pesce et al., 2012). Conversely, though, Klemperer et al. (2012) found that photo tags could be used to automatically create reasonable photo privacy settings for users to improve their photo privacy. A common theme within this research has been the privacy implications associated with photo tagging.