Dexter Chen is a threat researcher at TXOne Network with a primary focus on penetration testing, red teaming, and Active Directory security. He used to be a red teamer that specialized in lateral movement and operation security in Trend Micro. He was a frequent speaker at several international cyber security conferences such as Black Hat, CODE BLUE, HITCON, and CYBERSEC, also was the instructor of several trainings including HITCON training, Cybersecurity Center of Excellence (CCoE), and Ministry of National Defense. Dexter is a cyber security enthusiast who likes to playing labs, researching vulnerabilities, and exploring various attack techniques and he is currently the holder of OSCP and OSWE.