Undergraduate Intern @ KAIST AI
I am majoring in Computer Science at Yonsei University.
My research goal is ensuring the safety and robustness of embodied systems that interact with the real world.
AI Safety & Security

Sejin Lee*, Jian Kim*, Haon Park, Ashkan Yousefpour, Sangyoon Yu, Min Song (* equal contribution)
Accepted to 63rd Annual Meeting of the Association for Computational Linguistics(ACL) (Volume 6: Industry Track) 2025
SUDO (Screen-based Universal Detox2Tox Offense), a novel attack framework that systematically bypasses refusal-trained safeguards in commercial computer-use agents, such as Claude for Computer Use, is presented.
Sejin Lee*, Jian Kim*, Haon Park, Ashkan Yousefpour, Sangyoon Yu, Min Song (* equal contribution)
Accepted to 63rd Annual Meeting of the Association for Computational Linguistics(ACL) (Volume 6: Industry Track) 2025
SUDO (Screen-based Universal Detox2Tox Offense), a novel attack framework that systematically bypasses refusal-trained safeguards in commercial computer-use agents, such as Claude for Computer Use, is presented.

Sole Developer
2025
Developed EngEagle, a Chrome extension that streamlines English vocabulary acquisition during web browsing. Implemented instant word lookup and translation with automatic saving to a personal vocabulary list. Built a lightweight review/quiz flow to reinforce saved words with minimal context switching. Led the entire product cycle solo—from problem definition and MVP design to implementation and user-feedback iteration—ranking 1st out of 25 in a peer- and instructor- evaluated course showcase (SW·AI Business Application Design, CAS4151, 2025-2).
Sole Developer
2025
Developed EngEagle, a Chrome extension that streamlines English vocabulary acquisition during web browsing. Implemented instant word lookup and translation with automatic saving to a personal vocabulary list. Built a lightweight review/quiz flow to reinforce saved words with minimal context switching. Led the entire product cycle solo—from problem definition and MVP design to implementation and user-feedback iteration—ranking 1st out of 25 in a peer- and instructor- evaluated course showcase (SW·AI Business Application Design, CAS4151, 2025-2).