North Korea blamed for new cyberattack
CNN's Brian Todd reports on North Korea's alleged data hacking at South Korean nuclear power plants.
02:08 - Source: CNN
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North Korea blamed for new cyberattack
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This undated picture released from North Korea's official Korean Central News Agency (KCNA) on December 21, 2014 shows North Korean leader Kim Jong-Un (L) visiting the Kim Jong-Suk Pyongyang Textile Mill in Pyongyang.    AFP PHOTO / KCNA via KNS    REPUBLIC OF KOREA OUT 
THIS PICTURE WAS MADE AVAILABLE BY A THIRD PARTY. AFP CAN NOT INDEPENDENTLY VERIFY THE AUTHENTICITY, LOCATION, DATE AND CONTENT OF THIS IMAGE. THIS PHOTO IS DISTRIBUTED EXACTLY AS RECEIVED BY AFP. 
---EDITORS NOTE--- RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / KCNA VIA KNS" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTSKNS/AFP/Getty Images
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A banner for "The Interview"is posted outside Arclight Cinemas, Wednesday, Dec. 17, 2014, in the Hollywood section of Los Angeles. A U.S. official says North Korea perpetrated the unprecedented act of cyberwarfare against Sony Pictures that exposed tens of thousands of sensitive documents and escalated to threats of terrorist attacks that ultimately drove the studio to cancel all release plans for the film at the heart of the attack, "The Interview." (AP Photo/Damian Dovarganes)
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North Korean leader Kim Jong-Un in Pyongyang on July 27, 2013.
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