Top ranks in more than 10 international/domestic CTFs
Organized 10+ security conferences &s; CTFs
2006 Qualified to DEF CON CTF finals in Las Vegas as the first Asian ever
2006, 2007, 2009, 2010, 2011, 2013, 2014, 2015 Qualified to DEF CON finals
2009, 2010, 2014 Organized CODEGATE conference &s; CTF, inviting world-class international speakers
2013 NETSEC conference program committee member
2013 Review board for WISA conference program
2012 member of council for special prosecutor investigating DDoS incident on Republic of Korea National Election Commission
2012, 2013 Organized SECUINSIDE CTF, invited world-class international speakers
2011 Review board for ADD's SW vulnerability competition
2010 Won TippingPoint's Exploit competition in Recon, Montreal, Canada
2012~2016 Mentor for BoB participants, a security experts training program by KITRI & Ministry of Knowledge Economy
2013~2016 Member of counsil for Republic of Korea's Cyber-Command
2013~2016 Technical member of counsil for Samsung SDS's Integrated Security Control Center
2015~2016 Review board for Black Hat Asia
2015~2016 Nominated as "Cyber Guardians" by KISA
2016 Infosec expert member of counsil for Pyeongchang Olympics Organization
Invited to major/cable TV channels' programs, major news medias
Zeroday report: ZDI, iDefense, National Cyber Security Center
|