Yeongjin Jang


Ph.D. Student
Advisor(s): Prof. Wenke Lee and Prof. Taesoo Kim
GTISC / Systems Software and Security Lab
School of Computer Science
College of Computing
Georgia Institute of Technology


Yeongjin Jang is a doctoral student at Georgia Tech Information Security Center (GTISC).
His research focuses on operating systems and mobile security,
especially securing input/output (I/O) on the operating systems,
and identifying/analyzing new, and emerging threats.

He has published 14 papers in top-tier academic and industry conferences
that include ACM CCS, USENIX Security, ISOC NDSS, and Black Hat USA.

In addition to the academic works, he regularly participates capture-the-flag (CTF) contests.
He received the Black Badge from DEF CON, as the winner (team DEFKOR) of DEF CON 23 CTF (2015).

Prior to joining to Georgia Tech,
he received his bachelor's degree in computer science from KAIST (2010),
and earned master's degree in computer science from Georgia Tech (2016).

His CV is at here.

My Google Scholar Profle


  • [10/12/2016] I am counted as 141st researcher, and top among the Ph.D. students with 9 papers in top 4 security conferences (Oakland, CCS, USENIX Security, and NDSS, for recent 17 yrs).
  • [09/26/2016] I got 4.74 pts on Black Hat USA 2016 Speaker Evaluation (avg. 4.02). Thank you all for attending to my talk!
  • [08/07/2016] DEFKOR was on the 3rd place in the DEFCON 24 CTF.
  • [08/04/2016] CRSPY of Disekt was on the Cyber Grand Challenge.
  • [07/22/2016] DrK is accepted to ACM CCS 2016!
  • [06/22/2016] DrK is accepted to Black Hat USA 2016.
  • [06/09/2016] A Python bug (CVE-2016-5636) found by Insu (@Jakkdu) and Myself (@blue9057) rewarded $1,000 from the Internet Bug Bounty.
  • [05/13/2016] APISan is accepted to USENIX Security 16!
  • [05/04/2016] Three PHP bugs found by Insu (@Jakkdu) and Myself (@blue9057) rewarded $1,500 from the Internet Bug Bounty!
  • [04/13/2016] IDForWeb (team of myself, with Dr. Simon Chung, and Mark Wisneski) won People's Choice Award ($2,000 in cash prize) in IISP Demo Day Finale.