ast Wednesday, disrupting communications and banking businesses. The investigation into who planted the malware could take weeks or even months. South Korean investigators have produced no proof yet that North Korea was behind the cyberattack. Some of the malware was traced to a Seoul computer. Without elaborating, police said Monday that some of the malicious code also came from the United States and three European countries, South Korea's Yonhap news agency reported. But South Korea has pointed the finger at Pyongyang in six cyberattacks since 2009, even creating a cybersecurity command center in Seoul to protect the Internet-dependent country from hackers from the North. It may seem unlikely that impoverished North Korea, with one of the most restrictive Internet policies in the world, would have the ability to threaten affluent South Korea, a country considered a global leader in telecommunications. The average yearly income in North Korea was just $1,190 per person in 2011 just a fraction of the average yearly income of $22,200 for South Koreans that same year, according to the Bank of Korea in Seoul. But for several years, North Korea has poured money into science and technology. In December, scientists succeeded in launching a satellite into space aboard a long-range rocket from its own soil. And in February, North Korea conducted its third nuclear test. "IT" has become a buzzword in North Korea, which has developed its own operating system called Red Star. The regime also encouraged a passion for gadgets among its elite, introducing a Chinese-made tablet computer for the North Korean market. Teams of developers came up with software for everything from composing music to learning how to cook. But South Korea and the U.S. believe North Korea also has thousands of hackers trained by the state to carry its warfare into cyberspace, and that their cyber offensive skills are as good as or better than their counterparts in China and South Korea. "The newest addition to the North Korean asymmetric arsenal is a growing cyber warfare capability," James Thurman, commander of the U.S. forces in South Korea, told U,toms shoe store.S. legislators in March 2012,toms shoes on sale. "North Korea employs sophisticated computer hackers trained to launch cyber-infiltration and cyber-attacks" against South Korea and the U.S. In 2010, Won Sei-hoon, then chief of South Korea's National Intelligence Service, put the number of professional hackers in North Korea's cyber warfare unit at 1,000. North Korean students are recruited to the nation's top science schools to become "cyber warriors," said Kim Heung-kwang, who said he trained future hackers at a university in the industrial North Korean city of Hamhung for two decades before defecting in 2003. He said future hackers also are sent to study abroad in China and Russia. In 2009, then-leader Kim Jong Il ordered Pyongyang's "cyber command" expanded to 3,000 hackers,toms outlet, he said, citing a North Korean government document that he said he obtained that year. The veracity of the document could not be independently confirmed. Related articles:

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