Yaru Yang is a PhD student at Tsinghua University, majoring in Cyberspace Security. His research focuses on cellular network security, including IMS security, femtocell security, and core network security. His work has been published or accepted at leading academic conferences such as NDSS, IEEE S&P, DSN, and WiSec. He is also a CTF player and the former captain of Team Redbud, focusing on pwn, reverse, and misc challenges. He has won awards at competitions such as GeekPwn, GeekCon, WACON, and XCTF.