Title	A Study on the Methodology of Information Ethics Education in Youth
Author	Hoesung Ki, Seongjin Ahn
Citation	Vol. 6  No. 6  pp. 91-99
Keywords	Information Ethics, Internet Ethics, Computer Ethics, Cyber Ethics, students, Internet

Title	Research on Constructing an Internet-based Multi-step Security System
Author	Hoesung Ki, Seongjin Ahn
Citation	Vol. 6  No. 12  pp. 275-280
Keywords	Multi-step security system, firewall, intrusion detection system, intrusion prevention system, virus wall, security system construction model.