Twenty-four hours awake in Seoul
Hanbok at Changdeokgung, Myeong-dong after the rain, and the reverse challenge that made the whole contest - CODEGATE 2025
Here beginneth the tale of Le Phu Duc, called Jinn.
He is a Security Researcher at ECQ, and a graduate of the University of Information Technology.
He delighteth in the study of cybersecurity, with a particular fondness for Reverse Engineering and the secrets hidden within binaries.
Also a member of the CTF team Project Sekai, where he seeketh knowledge through challenge and craft.
Recent posts
The 37% rule
Mathematics is not only for solving equations. It can also tell you when to stop looking, before you pass up the best option you will ever see. The 37% rule, applied to the decisions that matter.
7-Day Journey at GCC Taiwan
How you make friends with students from six countries, finish a project at 3 AM, and end up winning it - GCC 2025 Taiwan
Three hours reversing, one strings command
Knowing when to stop is a skill. A teammate found the flag with one command while I was deep in the loader - UIUCTF 2024