Yeongjin Jang

Yeongjin Jang

Assistant Professor of Computer Science

Oregon State University

Building Unexploitable Systems!

Dr. Yeongjin Jang is an assistant professor of Computer Science and studies Cybersecurity. He hacks CPU, OS, iPhone, IoT devices, and anything that is operated by computers. He is interested in trustworthy computing, vulnerability discovery and analysis, side-channel attack and defense, developing new exploit primitives, mobile security, practical applied cryptography, jailbreaking, and ‘buidl’ing defense mechanisms.

You can read more about his ‘hacking’ story at here.

His prior research projects covered in popular media including: MIT Technology Review, Forbes, Reuters, CNN, CBS News, Wired, Telegraph, and many more.

In addition to the academic works, he has been enjoying playing capture-the-flag (CTF) contests. He is fortunate to be an advisor of OSUSEC, the team advanced to the DEF CON 30 CTF Final in 2022, and he received the Black Badge(s) from DEF CON, as the winner (team DEFKOR) of DEF CON 23 CTF (2015) and the winner (team DEFKOR00t) of DEF CON 26 CTF (2018).

You can watch demo videos of my hacks from below:

  • Cybersecurity/Hacking
  • Automated Vulnerability Discovery
  • Operating Systems Security
  • Software Security
  • Applied Cryptography
  • Ph.D. in Computer Science, 2017

    Georgia Institute of Technology

  • M.S. in Computer Science, 2016

    Georgia Institute of Technology

  • B.S. in Computer Science, 2010

    Korea Advanced Institute of Science and Technology


  • [05/05/2023] I quit my job from Oregon State University by 6/15.
  • [03/26/2023] Juno will be appear in SVCC 23!
  • [01/28/2023] Bastion will be appear in ASPLOS 23!

Recent Publications

Quickly discover relevant content by filtering publications.
(2023). Protect the System Call, Protect (most of) the World with BASTION. In Proceedings of the 28th International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS).


(2022). A Survey on Sensor False Data Injection Attacks and Countermeasures in Cyber-physical and Embedded Systems. In Proceedings of the 23rd World Conference on Information Security Applications (WISA).

(2022). Practical Privacy-Preserving Authentication for SSH. In Proceedings of the 31th USENIX Security Symposium (Security).

PDF Slides Video

(2022). Tightly Seal Your Sensitive Pointers with PACTIGHT. In Proceedings of the 31th USENIX Security Symposium (Security).

PDF Slides Video

(2022). Practical Privacy-Preserving Authentication for SSH. Cryptology ePrint Archive, Paper 2022/740.


(2022). Tightly Seal Your Sensitive Pointers with PACTight. arXiv:2203.15121 [cs.CR].


(2022). Securely Sharing Randomized Code that Flies. In ACM Journal Digital Threats: Research and Practice (DTRAP).



I have been teaching the following courses at Oregon State University (median course evaluation score attached, max 6.0):

To review how I teach at OSU, you can visit my Ratemyprofessor Profile.


I am fortunate to advise the following great researchers and students at Oregon State University:

  • Akshith Gunasekaran (PhD, co-advised with Dr. Rakesh Bobba, Spring 2018 – present)
  • Ping-Jui Liao (PhD, Fall 2018 – present)
  • Jinhong Choi (PhD, Spring 2019 – present)
  • Andrew Quach (MS, Summer 2019 – present)
  • Jonathan Keller (MS, Spring 2022 – present)
  • Lucas Ball (BS, Winter 2022 – present)
  • Rudy Peralta (BS, Spring 2022 – present)
  • Casey Colley (BS, Fall 2022 – present)

Alumni of my research group are:

  • Philiph Lee (MS, Winter 2021 – December 2022)
  • Kihwan Kim (Ph.D. Student Intern from KAIST, Jan 2022 – Jun 2022)
  • Changil Lim (Ph.D. Student Intern from KAIST, Jan 2022 – Jun 2022)
  • Taehyun Kim (Ph.D. Student Intern from KAIST, Jan 2022 – Jun 2022)
  • Ryan Kennedy (MS, Fall 2020 – Jun 2022)
  • Lyell Read (BS, Honors College, Summer 2019 – Jun 2022)
  • Cody Holliday (MS, Fall 2018 – Dec 2021)
  • Hadi Rahal-Arabi (MS, Winter 2019 – Sep 2021)
  • Phillip Mestas III (MS, Spring 2019 – Jun 2021)
  • Zander Nead-Work (BS, RELU, Summer 2019 – Jun 2021)
  • Khuong Luu (BS, Honors College, Spring 2019 – Dec 2020)
  • Jangha Kim (Researcher at NSRI, Apr 2019 – Mar 2020)
  • Sera Lee (Ph.D. Student Intern from KAIST, Jan 2019 – Aug 2019)
  • Travis Whitehead (Faculty Research Assistant, Sep 2019 – Jul 2020)


Assistant Professor
October 2017 – Present Corvallis, Oregon
Teaches hacking (attacks), cybersecurity (defenses), opearting systems (foundations), and many more day-to-day living skills for cyber ninjas.
Chief Engineer
Security Axioms
January 2013 – December 2014 Atlanta, GA
Worked at a research spin-off company during my Ph.D. study.
Graduate Research Assistant
Georgia Institute of Technology
August 2010 – August 2017 Atlanta, GA