Gengming Liu is a security researcher at KeenLab of Tencent. He has been participating in Pwn2Own since 2016. He is the vice-captain of eee CTF team and the former captain of AAA CTF team. He also plays CTFs as a member of b1o0p and A*0*E, which won the second place in DEFCON CTF 2016 and third place in DEFCON CTF 2017.