Social networking services like Twitter and Facebook helped the young Korean, who went missing in Turkey nearly two weeks ago, to learn about, and possibly even join, the Islamic State group.
"It may all have started out as curiosity, when the 18-year-old Kim typed in words like 'Islamic State,' 'Islam' and 'Syria' into his search engine.
So the concern is that, as easy as it was for Kim to turn on the computer and type, for young Koreans, falling into the arms of terrorists could be just a few clicks away."
Kim's Twitter has been attracting a lot of followers in recent days raising a red flag for authorities.
"These days, you just type in those words and it's easy to find information."
"I'm pretty sure that Korean teenagers, including the Kim boy, had no idea how violent the ISIS is, and how gruesome they are and what the ISIS philosophy is."
Doctor Jang says the IS has two main recruitment strategies: one is designed for hard-core devoted Muslims, the other targets those who seek money.
She says it's highly likely that Korean teenagers are targeted, as the IS knows there is high cyber penetration among the group, making them more vulnerable.
"I think there's a very significant asymmetry within Korean society.
Unfortunately, our society, especially Korean media, are highly only focusing on Korean peninsula issues and Northeast (Asia) security issues."
Experts say Korean society has to expand its perspective and awareness in order to provide young people with enough information on the truth about Islamic terrorist groups, and be more vigilant about Internet censorship.
Kwon Soa, Arirang News.