Xinyuan Wang is an Associate Professor in the Department of Computer Science at George Mason University. He received his PhD in Computer Science from North Carolina State University in 2004 after years professional experience in networking industry. His main research interests are around computer network and system security – including malware analysis and defense, attack attribution, anonymity and privacy, VoIP security. He has first demonstrated that it is feasible to track encrypted, anonymous peer-to-peer VoIP calls on the Internet. He has demonstrated the fundamental limitations of existing low-latency anonymous communication systems in the presence of timing attack, and developed the first practical attack that has “penetrated” the Total Net Shield – the “ultimate solution in online identity protection” of www.anonymizer.com with less than 11 minutes worth of Internet traffic. Xinyuan Wang is an Associate Editor of IEEE Transactions on Dependable and Secure Computing (TDSC). He is the leading inventor of six US patents and a recipient of the 2009 NSF Faculty Early Career Development (CAREER) Award.