Social Networks and Big Data have pervaded all aspects of our daily lives. With their unparalleled popularity, social networks have evolved from the platforms for social communication and news dissemination, to indispensable tools for professional networking, social recommendations, marketing, and online content distribution. Social Networks, together with other activities, produce Big Data that is beyond the ability of commonly used computer software and hardware tools to capture, manage, and process within a tolerable elapsed time.

Due to their scale, complexity and heterogeneity, a number of technical and social challenges in Social Networks and Big Data must be addressed. It has been widely recognised that security and privacy are the critical issues. On one hand, Social Networks and Big Data have been an effective platform for the attackers to launch attacks and distribute malicious information. On the other hand, privacy leakage through Social Networks and Big Data has become common exercise. Following the success of the first event, the aim of the 2nd IEEE International Symposium on Security and Privacy in Social Networks and Big Data (IEEE SocialSec 2016) is to provide a leading edge forum to foster interactions between researchers and developers with the security and privacy communities in Social Networks and Big Data, and to give attendees an opportunity to interact with experts in academia, industry, and governments.

IEEE SocialSec 2016 will be held at Shangri-La's Fijian Resort and Spa, Yanuca Island, Fiji on 8-10 December 2016. It will be co-located with the 6th International Symposium on Cloud and Service Computing (SC2-2016), the 3rd International Conference on Internet of Vehicles (IOV 2016), and 16th International Conference on Computer and Information Technology (CIT 2016). Get ready to enjoy a unique trip in an wonderful island in this Globe.