Currently @ ENKI Whitehat. (2025.04 ~ )
- Overall System Security
- Operating System Security
- Embedded System Security
- ...
- Software Reversing
- Vulnerability Research & Exploitation
- Researcher @ ENKI Whitehat. (2025.04 ~ )
- M.S in EE @ KAIST Hacking Lab. (2023.02 ~ 2025.02)
- Thesis: CROSS-X: toward automation of general and stable cross-cache attack in Linux kernel
- B.S in CS / EE (double major) @ KAIST (2018.03. ~ 2023.02.)
- Member of KAIST GoN (2018.03. ~ )
- KAIST Student CERT Senior Member (2018.08. ~ 2021.12.)
- KAIST Student CERT Leader (2020.03. ~ 2021.12.)
- Security Engineer Internship @ Naver (2019.07 ~ 2019.09)
- CROSS-X: Generalized and Stable Cross-Cache Attack on the Linux Kernel, ACM CCS 2025
- Authors: Dong-ok Kim*, Juhyun Song*, Insu Yun (*co-first authors)
- Presenter of SSTF 2024 (From 1-day to Profit: A brand-new paradigm of exploit bounty program), 2024
- Presenter of Power Of Community (One shot, Triple kill: Pwning all three Google kernelCTF instances with a single 1-day Linux vulnerability), 2023
- CVE-2023-3390: Linux LPE 1day vulnerability
- Rewarded $67,837 from Google kernelCTF program
- CVE-2023-40250: Buffer Overflow from Hancom HCell
- Rewarded ~$1,500 from KISA Bug Bounty program
- Several local product bounties
- KVE-2021-0932, KVE-2021-0933, KVE-2021-1054, KVE-2021-1056...
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- Grand Prize in ICT Security Idea Contest, 2025
- 2nd place in Cyber Security Challenge (as KAIST Hacking lab.), 2023
- 1st place in Cyber Conflict Exercise (Overall divison, as The Goose), 2023
- 1st place in Codegate CTF (University division, as KAIST GoN), 2022
- 2nd place in Cyber Conflict Exercise (General division, as The Goose), 2022
- 1st place in WACON (General division, as The Goose), 2022
- DEFCON 27 Finalist (as KaisHack GoN), 2019
- Participation Award in II-B(Cryptography Problem Solving), National Cryptography Contest, 2018
- Challenge author & Organizer of CODEGATE CTF, 2024
- Challenge author & Organizer of Cyber Conflict Excercise Qual, 2024
- Challenge author & Organizer of Whitehat Contest, 2022
- Challenge author of Whitehat Contest, 2021
- Challenge author & Organizer of Cyber Operations Challenge, 2020
- Challenge author of CODEGATE CTF, 2020
- National Science & Technology Scholarship (2020.02 ~ 2022.02)