Cyber-attacks were launched against three major banks and three TV broadcasters in South Korea on March 20, and North Korea is suspected of being the perpetrator. There is also a report that the Chinese military is likely to be involved in many cyber-attacks against the United States.

Japanese government organizations and private companies were also targeted by cyber-attacks. For example, defense contractors such as Mitsubishi Heavy Industries Ltd., IHI Corp. and Kawasaki Heavy Industries Ltd. reported cyber-attacks against them in 2011.

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