Xiaolong Bai is a PhD student in the Department of Computer Science andTechnology, Tsinghua University. His major research interest is to find andmitigate new vulnerabilities in mobile systems, including Android, iOS/OS Xand so on. He has published several papers on top research conferencesincluding IEEE Security & Privacy and ACM CCS. His hacking on mobile systemsand applications has been acknowledged by major IT companies including Apple,Evernote and Tencent. He is now looking for job opportunities in mobilesecurity and system security. His email address isbxl12@mails.tsinghua.edu.cn.