Dr. YongJun Lee received a Ph.D. in Computer Science from Soongsil University, Korea, in 2005. He is currently a professor in the Department of Hacking Security at Far East University in Korea. From 2016 to 2020, he worked in the Defense Security Institute (DSI), where he has researched the insider threat program as a research official. From 2010 to 2015, he worked at the Korea Internet & Security Agency (KISA), where he has researched cybersecurity as a principal researcher. From 2006 to 2009, he worked at LG CNS, where he has researched industrial technology security as a senior researcher. His research interests have been focused on issues of cyber incidents.