https://guanjoer.github.io/Recent content on GuanJoer ArchiveHugoen-usSun, 26 Apr 2026 15:51:50 +0900https://guanjoer.github.io/posts/about-me/Sun, 26 Apr 2026 15:51:50 +0900https://guanjoer.github.io/posts/about-me/<h2 id="-hello-im-youngmin-jo">👋 Hello, I&rsquo;m Youngmin Jo</h2> <p>I am a <strong>Cybersecurity Professional</strong> and <strong>Penetration Tester</strong> currently based in Seoul, South Korea. I specialize in offensive security, specifically focusing on Web, Mobile, and the AI/LLM application security.</p> <p>Currently, I am a member of <strong>EQST (Experts, Qualified Security Team)</strong> at <strong>SK Shieldus</strong>, where I conduct high-level security assessments and research.</p> <hr> <h2 id="-background--philosophy">🎓 Background &amp; Philosophy</h2> <p>My approach to security is deeply rooted in my background in <strong>Physics</strong>. Holding a degree in Physics, I apply the fundamental laws of logic and analytical rigor to deconstruct complex systems and identify architectural weaknesses.</p>