USING SOCIAL SIGNALS TO IDENTIFY UNAUTHORIZED CONTENT ON A SOCIAL NETWORKING SYSTEM

A prediction is calculated to determine whether a content item posted on a social networking system infringes on copyrights or otherwise violates the system's terms of use. The predictions are generated using social signals that are based on social information surrounding the content item, such as the density of connections between the posting user and the viewing users, the profile information of the users, and the geographical separation between the users. The content item is disabled if the prediction indicates a violation and the violation can be verified.