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For North Korea's cyber army, long-term target may be telecoms, utility grids
Dec 19 2014 3:44AM EST | Source: REUTERS TechnologySEOUL (Reuters) - The hacking attack on Sony Pictures may have been a practice run for North Korea's elite cyber-army in a long-term goal of being able to cripple telecoms and energy grids in rival nations, defectors from the isolated state said.