CySec Lab @ Yonsei University

Welcome to Cyber Security (CySec) Lab in the Department of Computer Science in College of Computing at Yonsei University. We are a group of people who are genuinely interested in improving the security of modern computer systems. We work on developing compiler, systems, and machine learning techniques (or a combination thereof) to solve real-world security and privacy problems.

To Prospective Students

We are always looking for motivated students who enjoy building, breaking, or securing software systems. Please contact Prof. Dokyung Song ( if you are looking for research opportunities at any level (undergrad/M.S./Ph.D) in software systems security.

Research Areas

  • Vulnerability Scanning in Low-Level System Software
  • Trustworthy & Confidential Machine Learning Systems
  • Machine Learning for Binary Reverse Engineering
  • See here for more details.


  • June 2023: Minhee has joined the lab. Welcome!
  • May 2023: ReUSB has been accepted to appear at USENIX Security ‘23. Congratulations to Jisoo and Minsuk!
  • Jan 2023: Jisoo, Minsuk, and Joonkyo have joined the lab. Welcome!
  • July 2022: Myungsuk has joined the lab. Welcome!
  • April 2022: XBA has been accepted to appear at ISSTA ‘22.
  • February 2022: GuardiaNN has been accepted to appear at Middleware ‘22.
  • April 2021: dMVX has been accepted to appear at EuroSec ‘21.
  • March 2021: Our lab has been founded.