Co-founder of www.opennetkorea.org. Served as Commissioner at Korean Communication Standards Commission, a Presidentially appointed Internet content regulation body (2011-2014). Served as Member of the National Media Commission, a Parliament-appointed advisory body on newspaper-broadcasting co-ownership bans and other media and Internet regulations (2010). Served as International Relations Counsel to the Korea Film Council and arranged the Korea-France Film Co-production Treaty, and advised on the UNESCO Cultural Diversity Convention (2002-2007).

He has served both as Executive Director, PSPD Law Center (2008-), and Open Net Korea (2013-) which have pursued and won several high profile impact litigation and legislative advocacies in freedom of speech, privacy, net neutrality, web accessibility, digital innovation, and intellectual property, including the striking down (or defending against) of the Internet real name law, the Minerva false news dissemination law, the law on warrantless seizure of subscriber identity data, the bad faith copyright takedown notice, the law requiring government-backed electronic signatures for all online payments, , etc. Founded Korea University Law Review and the Law Schools' Clinical Legal Education Center and spearheaded www.internetlawclinic.org and www.transparency.or.kr under that Center. Graduated from Harvard University (Physics) and UCLA Law School (JD).