KaiJern, Lau (xwings) is the IoT/Blockchain researcher at JD Security (JD.COM), Advisor for UnicornTeam/HACKNOWN Team and also Hack In The Box Security Conference core crew. His research topic mainly on hardware and software of embedded device, blockchain security, reverse engineering and various security topics. He presented his findings in different international security conferences like HITB, Codegate, QCon, KCon, International Antivirus Conference and etc. He conducted Hardware Hacking Course during KCon, Beijing. He is also the review board member for Hack In The Box Security Conference.