SeoJoon Jeon
Computer Science & Economics Student
Always moving toward the singularity —
where change is born and limits disappear.
Education
Objective
Passionate about turning real-world problems into practical applications. I identify inconveniences in daily life and develop applications or software to solve them. Self-taught from an early age, I have created and deployed services that are actively used by peers and myself, while also pursuing vulnerability research in software, APIs, and DRM systems.
Focused on applied cryptography and designing stronger protections for digital assets, aiming to enable creators, developers, and the public to live more securely in the digital age.
Skills & Expertise
Languages
Frameworks
Tools
Focus Areas
Research Interests
My research interests focus on the intersection of software security and applied cryptography, with a particular emphasis on DRM and asset protection systems.
- ▸Vulnerability Research in Commercial Software and APIs
- ▸Digital Rights Management (DRM) and Cryptography
- ▸Secure Protocols, Cryptographic Algorithms, and Software Protection Mechanisms
- ▸Privacy Protection and Data Security to Safeguard Individual Rights
Experience
Independent Security Researcher
Discovered a design/implementation vulnerability in the anti-recording subsystem of a Korean commercial DRM vendor; conducted responsible disclosure and received a bug-bounty reward of approximately $450.
API Vulnerability Researcher
Identified and responsibly reported multiple API authentication/authorization flaws in Korean music streaming and OTT platforms that allowed unauthorized content access.
Project Manager & Developer, YCC
Served as a project manager and core developer for Yonsei Computer Club software projects while leading a CS study group. Responsibilities included project planning, code review, and mentoring junior members.
Projects
Code Availability Notice
Source code cannot be shared due to private API endpoints. Happy to discuss technical details privately.
Honors & Awards
Honor Roll, Yonsei University
2024Awarded for outstanding academic performance and achieving a high GPA in the Department of Economics.
Bug Bounty Award — Commercial DRM Vendor
2023Recognized with a $450 reward for responsibly disclosing a design vulnerability in an anti-recording subsystem.
First Place, High School Programming Competition
2021Won the school's annual programming contest with the most votes.
Minister's Award, National Science Fair (Korea)
2017Received one of the highest honors at Korea's largest student science competition for conducting scientific research.
Extracurricular Activities
Yonsei Musical Club "Rothems"
2025 - PresentActor in the officially licensed school production of Spring Awakening.
Yonsei Computer Club (YCC)
2024 - PresentProject Manager and study leader; organized projects and study sessions.
YCC Rookies (Freshmen Sub-club)
2024Vice President & Treasurer; handled club finances and supported activities for first-year members.
High School Engineering Club
2018 - 2021Worked on interdisciplinary projects integrating computer engineering, electronics, and mechanical engineering.
High School Baseball Team
2018 - 2021Played as shortstop and pitcher during school league activities.
Middle School English Debate Club
2015 - 2017President — Led club activities and participated in debate tournaments, receiving awards for performance.
© 2025 SeoJoon Jeon. All rights reserved.