Junghwan Kang is a senior security researcher at The Affiliated Institute of Electronics and Telecommunications Research Institute of South Korea. He has focussed on systematic methods and techniques to harden the security for a customized Linux distribution for years. Junghwan Kang was also a speaker of Open Source Summit North America 2017/2018/2020 and Blackhat Asia 2017. Besides, he has been a finalist in hacking contests such as Codegate 2009 and ISEC(Information Security Conference) 2011 held in South Korea.