Xiaolong Bai (twitter@bxl1989, github@bxl1989) is a security engineer in Alibaba Orion Security Lab. Before joining Alibaba, he received his Ph.D. degree in Tsinghua University. He has published several research papers on top conferences including IEEE S&P, Usenix Security, CCS, NDSS, and presented his research in Black Hat, DEF CON, HITB, CanSecWest, etc. He has been acknowledged by famous vendors, including Apple, Google, Facebook, Evernote, and Tencent for his contribution in discovering the vulnerabilities in their systems and improving the security of their products. He is a member of the OverSky team for private jailbreaking development. Twitter: @bxl1989 Website: https://xiaolongbai.weebly.com/ Github: https://github.com/bxl1989/