Qidan He (a.k.a Edward Flanker, CISSP) is the winner of multiple Pwn2Own championships and Pwnie Award. He is now the Director & Chief Security Researcher at Dawn Security Lab, JD.com. He has spoken at conferences like Black Hat, DEFCON, RECON, CanSecWest, MOSEC, HITB, PoC, etc. He is also the committee and judge of GeekPwn&GeekCon.