About

Interested in WEB, WEB3, and CLOUD security (hacking).

Skills

• Web Security — web application hacking & exploitation
• Web3 Security — smart contract / blockchain security
• Cloud - AWS

Experience

• CTF Team - Rubiyalab (2024.06 ~)
• Blockchain - BAY(Blockchain At Yonsei, DEV TEAM) (2026.01 ~)

Cybersecurity Consultant

Oct 2024 – Present

• Working as a cybersecurity consultant.

Projects

ETH/USD Prediction Mini-Game

A mini prediction game for ETH/USD price using the Pyth oracle.

• Tech: Web3, Smart Contracts, Pyth Network
• Repo: https://github.com/LOBYI/BAY_ETHPrediction

CTF & Competitions

• Codegate 2025 — Rubiyalab(Participant)
• Cyber Conflict Exercise 2025 — Attack & Defense, Beta Tester, Blue Team (Aug 2025) — link
• Defcon 34 (2026) — Jinddabi’s(Finalist, 7th Place)