Over the last few years, online social networks (OSNs), such as Facebook, Twitter and
Tuenti, have experienced exponential growth in both profile registrations and social …

In the present era, online social networks are the most popular and rapid information
propagation applications on the Internet. People of all ages spend most of their time on …

Social networks are very popular in today's world. Millions of people use various forms of
social networks as they allow individuals to connect with friends and family, and share …

The emerging Internet-of-Things (IoT) are vulnerable to Sybil attacks where attackers can
manipulate fake identities or abuse pseudoidentities to compromise the effectiveness of the …

Users increasingly rely on the trustworthiness of the information exposed on Online Social
Networks (OSNs). In addition, OSN providers base their business models on the …

Online Social Networks (OSNs) have become an integral part of today's Web. Politicians,
celebrities, revolutionists, and others use OSNs as a podium to deliver their message to …

Users increasingly rely on crowdsourced information, such as reviews on Yelp and Amazon,
and liked posts and ads on Facebook. This has led to a market for blackhat promotion …

Online Social Networks (OSNs) have attracted millions of active users and have become an
integral part of today's web ecosystem. Unfortunately, in the wrong hands, OSNs can be …

Sybil attacks are a fundamental threat to the security of distributed systems. Recently, there
has been a growing interest in leveraging social networks to mitigate Sybil attacks. However …

Sybil attacks in which an adversary forges a potentially unbounded number of identities are
a danger to distributed systems and online social networks. The goal of sybil defense is to …