John Jiang is a cybersecurity researcher at CyCraft Technology and is currently focused on incident response (IR), endpoint security, and Active Directory (AD) security. He has investigated multiple domestic and foreign APT-level security incidents and continues to perform in-depth analyses of attacker techniques and detection methods. He is an active member of the international cybersecurity community and has spoken at multiple conferences, including Black Hat USA, HITCON, and HITB. He is also the co-founder of the Taiwan cybersecurity organization UCCU Hacker.