Qiang Liu is currently an Associate Professor at the National University of Defense Technology (NUDT), Changsha, China. He received his Ph.D. degree in computer science and technology from NUDT in 2014. From Sep. 2011 to Sep. 2013, he was a Visiting Scholar in Department of Electrical and Computer Engineering at the University of British Columbia (UBC), Canada. He is also a steering member of China Computer Federation (CCF) Technical Committee of Network and Data Communications (CCF TCCOMM), CCF Technical Committee of Theoretical Computer Science (CCF TCTCS) and CCF Technical Committee of Education. His research interests include network security, graph learning, and AI security. Dr. Liu has contributed over 90 archived journal and international conference papers, such as IEEE Netw., IEEE Trans. Wireless Commun., IEEE Trans. Cybern., IEEE Trans. Knowl. Data Eng., Pattern Recogn., IEEE Commun. Lett., Neurocomputing, Neural Comput. Appl., Mob. Inf. Syst., ACM TURC, AAAI ACM MM, etc. He have served as a reviewer of several international journals/conferences (e.g., ACM Computing Surveys, IEEE TNSM, IEEE Communications Surveys and Tutorials, SIGCSE, AAAI, etc.) and a guest editor of some international journals (e.g., MONET, WINET, Mobile Information Systems, etc.).