Yeo JooHo
Lead Researcher | PIOLINK Cybersecurity Research Team
Seoul, South Korea
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YEO JOOHO is a seasoned Security Researcher and White Hat Hacker with a distinguished career spanning military operations, government investigations, and large-scale cloud infrastructure security. He has served as a cyber threat analyst for major CSPs (Cloud Service Providers) and provided critical technical support for high-profile anti-corruption investigations at the national prosecutor's office.
A graduate of the prestigious Best of the Best (BoB) next-generation security leader program, his offensive and defensive capabilities are globally recognized. His accolades include a 2nd place finish (Blue Team) in the National Cyber Conflict Exercise (CCE) and multiple commendations for excellence in cloud incident response.
As an active vulnerability researcher, Jooho has a prolific history of discovering and reporting security flaws in open-source web frameworks, mobile messengers, and enterprise systems. He has also contributed to national security as an official challenge author for military cyber warfare competitions and an advisory member for government-led research projects.
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