Mars Cheng (@marscheng_) is the Head of Cyber Threat & Product Defense Center at TXOne Networks Inc., responsible for leading the three subgroups under the center, including PSIRT, Advanced Threat Research Group, and Threat Operation Group. He also serves as the Executive Director of the Association of Hackers in Taiwan (HIT/HITCON), a Review Board Member for both HITCON Conference and Training, FIRSTCON26, the General Coordinator of HITCON CISO Summit 2026, and a Cybersecurity Auditor for the Taiwan Government. In these roles, he plays a pivotal part in fostering collaboration between industry and government to strengthen national cybersecurity resilience.

Mars specializes in IoT, ICS/SCADA systems, malware analysis, threat intelligence and hunting, blue team, and enterprise security. A seasoned speaker, Mars has delivered over 60 presentationst at international cybersecurity conferences, including Black Hat USA, Europe, and MEA, RSA Conference, DEF CON, CODE BLUE, FIRST, HITB, HITCON, Troopers, NOHAT, SecTor, CYBERSEC Tawian, S4, SINCON, ROOTCON, among others. He is also an experienced cybersecurity instructor, having delivered over 35 training sessions at events such as NATO Cooperative Cyber Defence Centre of Excellence, Global Cybersecurity Camp (GCC) 2026, 2024, HITCON Training (2025, 2022, 2021, 2020, 2019), NICS Elite Practical Training Taiwan (2025–2022), and for various ministries in Taiwan, including National Defense, Economic Affairs, Education, and Finance, as well as for publicly listed companies.

He has successfully organized several notable HITCON events, such as the HITCON CISO Summit in 2025, 2024 and 2023, HITCON PEACE 2022, and HITCON 2021 and 2020.