Hello!

I am a PhD student in Hacking Lab at KAIST, advised by Prof. Insu Yun. Previously, I was at Networking and Mobile Systems Lab, led by Prof. Sung-Ju Lee. I am interested in designing and building practical solutions for real-world software security problems. Currently, I am working on automatic exploit generation for vulnerable smart contracts. Previously, I worked on projects that delve deeply into the Android OS, such as content moderation for the Youtube Android app and micro-virtualization to recover Android apps from compatibility crashes.

Curriculum Vitae (updated 2025/06/01)

Education

Korea Advanced Institute of Science and Technology (KAIST)
MS-PhD Integrated Program | Feb 2022 - Present
Advisor: Insu Yun

Korea Advanced Institute of Science and Technology (KAIST)
Bachelor of Engineering | Aug 2017 - Feb 2022

Work Experience

Hacking Lab
Graduate Student Researcher | Sept 2024 - Present
Advised by: Dr. Insu Yun

Nokia Bell Labs Cambridge
Research Intern | June 2024 - Aug 2024
Advised by: Dr. Diana Vasile, Dr. Chulhong Min

Networking and Mobile Systems Laboratory | Daejeon, Korea
Undergraduate Student Researcher, Graduate Student Researcher | June 2020 - May 2024
Advised by: Dr. Sung-Ju Lee

Publications

C=Conference, W=Workshop, P=Preprint

[C.2] Automated Attack Synthesis for Constant Product Market Makers
Sujin Han, Jinseo Kim, Sung-Ju Lee, Insu Yun
International Symposium on Software Testing and Analysis (ISSTA) 2025

[W.1] SecuWear: Secure Data Sharing Between Wearable Devices
Sujin Han, Diana A. Vasile, Fahim Kawsar, Chulhong Min
Workshop on Security and Privacy in Standardized IoT (SDIoTSec) 2025

[C.1] FoodCensor: Promoting Mindful Digital Food Content Consumption for People with Eating Disorders
Ryuhaerang Choi, Subin Park, Sujin Han, Sung-Ju Lee
Conference on Human Factors and Computing Systems (CHI) 2024
Best Paper Honorable Mention (Top 5%)

[P.2] Feeding the Crave: How People with Eating Disorders Get Trapped in the Perpetual Cycle of Digital Food Content
Ryuhaerang Choi, Subin Park, Sujin Han, Sung-Ju Lee
arXiv preprint

[P.1] Recover as It is Designed to Be: Recovering from Compatibility Mobile App Crashes by Reusing User Flows
Donghwi Kim, Hyungjun Yoon, Chang Min Park, Sujin Han, Youngjin Kwon, Steven Y. Ko, Sung-Ju Lee
arXiv preprint