/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: changkukchoi https://cdn.slidesharecdn.com/profile-photo-changkukchoi-48x48.jpg?cb=1664285595 -Building, operating, and managing the IT security infrastructure for the Large internet portal -IT Infrastructure vulnerability analysis, evaluation, and derive improvements. (Quantify the security audit score to reflect the rating of each infrastructure workforce) -Audit IT businesses and derive improvements (First time in NHN to conduct security audit to the workplace) Admin at Hacker4U 2000-2002 NHN IT Security System established 2005-2007 KOEA first security conference Founder 2006 NHN CHINA Security System established 2007-2010 HARU&SECUINSIDE Founder 2011 SECUINSIDE organized 2011,2012,2013,2014,2015,2016 http://secuinside.com