Social networking sites have become major targets for cybercrime due to the large amounts of personal user information they collect. Criminals are able to use details from profiles to craft convincing phishing emails and social engineer victims. While anonymity online enables some criminal behavior, removing anonymity also poses risks to privacy and freedom of expression. As more data is aggregated about individuals, it will become easier over time to identify users and develop detailed profiles about their lives, habits, and relationships, even if they try to remain anonymous. This aggregated data could then potentially be used for surveillance and other strategic purposes beyond just marketing. Strong privacy laws and regulations are needed to curb these emerging threats to privacy.