About me
0xGunnHi, my name is Nguyen Viet Tin ā aka 0xGunn. Iām currently studying digital forensics, reverse engineering, open-source intelligence (OSINT), and participating in CTF competitions. Here, I share practical notes, writeups, and lessons learned from these journeys.
Focus areas
- Threat hunting & SOC triage
- Detection engineering (Sigma / SIEM)
- Incident response & forensics basics
- Hardening & security operations
Achievements
- Third Prize ā CyberFest 2025 (co-organized by DevSecOps Solutions Vietnam and DevPlus Touch Cyber)
- Second Prize ā NULL POINTER (co-organized by CSEM and Sturtle Security Pvt Ltd)