Title: Sesang esŏ kajang anjŏn han irŭm An Ch'ŏl-su Yŏn'guso
Subjects: Computer software industry, Computer viruses, Computer security, An Ch'ŏl-su Yŏn'guso, An Chʻŏl-su Yŏnʼguso
Places: Korea (South)
People: Ch'ŏl-su An (1962-)