South Korean security experts suggest that North Korea military is training an elite force of cyber warriors to involve in cyber attacks against South institutions and companies. North Korea has an elite of cyber units already made up of 3,000 hackers trained to cyber espionage and on offensive security. South Koreas defense ministry announced Monday it would start preparing the national army for cyber warfare in conjunction with the United States. The Wall Street Journal revealed that the US flew F-22 stealth fighter jets to South Korea on Sunday for joint exercises.”]