Juhan Kim
CEO of BusinessH4C, Lead of TeamH4C
Seoul, South Korea
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Juhan Kim is the Founder and CEO of BusinessH4C, a cybersecurity consulting and education company, and the Founder and Lead of TeamH4C, a South Korean white-hat hacking team he has led since 2011. TeamH4C ranked #1 globally on CTFtime in 2026.
With more than 15 years of experience in cybersecurity, Juhan has worked across offensive security, vulnerability research, security education, and cybersecurity consulting. He also serves as a member of the 2030 Advisory Group to South Korea’s one of the main government departments named Ministry of Science and ICT.
His work focuses on bridging hands-on offensive security with security education, organizational decision-making, and the practical adoption of emerging technologies such as AI. He has also received commendations from the Seoul Metropolitan Council and the Korea Information Technology Research Institute, as well as an award from the National Assembly Research Service for legislative and policy proposals.
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