About me
오호균 (Ho Kyun Oh) aka. ohk990102, ViceVersa
Security Researcher
Interested in Security & Machine Learning & Everything about computer
Education Link to heading
- (Mar. 2017 ~ Feb. 2021) B.S. @ Korea University
- Major: Bachelor of Engineering, Minor: Cyber Defense, Convergence Security
- (Mar. 2022 ~ Present) Ph.D. @ Korea University
Team Link to heading
- (2017 ~ 2021) Cykor
- (2023 ~ Present) Call of Duty
- (2024 ~ Present) Cold Fusion (Merger of
Call of Duty,Cykor,CatFlag,PLUS,Haim,Definit, …)
Award Link to heading
CTF Link to heading
- weird_vm challenge co-author @ WCTF 2019 (Team Cykor)
- 4th @ zer0pts 2020 (Team Cykor)
- 8th @ DEFCON CTF 2020 Finals (Team Cykor)
- 1st @ CodeGate 2020 Quals & Finals College Division (Team Cykor)
- BLPfs challenge co-author @ WCTF 2020 (Team Cykor)
- 2nd @ zer0pts 2021 (Team K-Students)
- 4th @ CCE 2023 Quals Public Organization Division (Team 팀명추천받습니다)
- 1st @ CCE 2023 Finals Public Organization Division (Team 팀명추천받습니다)
- 4th @ CTFZone 2023 Quals (Team Call of Duty)
- 8th @ CTFZone 2023 Finals (Team Call of Duty)
- 11th @ zer0pts 2023 (Team Call of Duty)
- 6th @ DEFCON CTF 2024 Quals (Team Cold Fusion) - Writeup
- 21st @ CodeGate 2024 Quals General Division (Team 원석이만믿고간다) - Writeup
- 18th @ Google CTF 2024 Quals (Team Cold Fusion) - Writeup
Contest Link to heading
- Silver @ Korea Olympiad in Informatics Highschool Division 2016
- 1st @ Cybersecurity AI & Bigdata Challenge 2023 Track A (Team 원석이만믿고간다) - Code
Training Link to heading
- NATO CCDCOE Locked Shields 2023
- 1st @ Netherland DCC CyberNet 2023
Experience Link to heading
- (Dec. 2018 ~ Feb. 2019) Internship @ Stealien
- Projects on Android App Security
- (Jun. 2019 ~ Mar. 2020) Top 30 @ Best of the Best 8th
- Research about Prototype pollution detection on Node.js modules (Team NerdJS)
- (Jun. 2021 ~ Jun. 20281) Officer @ MND
- Research on Cyber Security
Contact Link to heading
- ohk990102 at gmail.com
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Mandatory military service period ↩︎