Kim Dong-hyun is a skilled security researcher and blockchain developer with extensive expertise in computer engineering, exploit development, and pen-testing. He has a combined PhD program from Korea University, with a focus on English, Android System, Linux & Windows Exploit, WEB, Pen-testing. Kim has a master's degree in wireless communications engineering from Korea University and a bachelor's degree in hacking & virus from Korea IT Technical College. He has worked as a security researcher at LINArena and as a blockchain server developer at Reponse. Kim's expertise in the fields of exploit development and pen-testing makes him one of the leading researchers in the field. He has extensive research experience studying blockchain and different forms of hacking.