Detecting social network profile cloning

Social networking is one of the most popular Internet activities, with millions of users from around the world. The time spent on sites like Facebook or LinkedIn is constantly increasing at an impressive rate. At the same time, users populate their online profile with a plethora of information that aims at providing a complete and accurate representation of themselves. Attackers may duplicate a user´s online presence in the same or across different social networks and, therefore, fool other users into forming trusting social relations with the fake profile. By abusing that implicit trust transferred from the concept of relations in the physical world, they can launch phishing attacks, harvest sensitive user information, or cause unfavorable repercussions to the legitimate profile´s owner. In this paper we propose a methodology for detecting social network profile cloning. We present the architectural design and implementation details of a prototype system that can be employed by users to investigate whether they have fallen victims to such an attack. Our experimental results from the use of this prototype system prove its efficiency and also demonstrate its simplicity in terms of deployment by everyday users. Finally, we present the findings from a short study in terms of profile information exposed by social network users.