Jinu conducts research and security vulnerability analysis with a focus on blockchain and web security. For the past 3 years, Jinu conducted over 10 security audits in the blockchain field such as mainnet, digital asset exchange, and blockchain bridge. As a member of the GYG team, Jinu won the CCE and Whitehat Contest among domestic CTFs, and triumphed as a DEFCON Finalist. Prior to joining KALOS, Jinu conducted various security audits at theori, not only in the blockchain realm but also in web security.