YANG Qing is the team leader of Unicorn Team in Qihoo 360 Technology Co. Ltd. He has rich experiences in wireless and hardware security area, including WiFi penetration testing, cellular network interception, IC card cracking etc. His interests also cover embedded system hacking, firmware reversing, automotive security, and software radio .He is the first one who reported the vulnerabilities of WiFi system and RF IC card system used in Beijing subway.