With the proliferation of many innovative data communications services such as social networks, cloud computing, location-based service, and Internet of Things, security and privacy issues become more and more demanding and challenging. This symposium aims to bring together academics and industry professionals working on the security and privacy aspects of data communications and computer networks, and provide a forum to present and discuss emerging ideas, progresses and trends in this highly challenging research field. Topics of interest include, but are not limited to: Privacy and security in mobile and wireless communications Privacy and security in grid and cloud computing Privacy and security in pervasive and ubiquitous computing Privacy and security in location-based service Privacy and security in social networks Privacy and security in Internet of Things Big Data security and privacy Anonymity, anonymous communication, metrics and their performance analysis Computer and network forensics Cryptography and evaluation Intrusion detection and protection systems Data center security Mobile App security and privacy Network public opinion analysis and monitoring Network security metrics and their performance evaluation Quantum cryptography and communication applications Resource allocation, incentives, and game-theoretic approaches Privacy and security in virtual machine environments Privacy and security in wired systems and optical networks Privacy and security of Cyber-physical systems Virtual private networks and group security Cognitive Security and privacy Security and access control of critical infrastructure