South Korea Finds Links Between Nuclear Power Plants Hackers And North Korea

http://www.ibtimes.com/south-korea-finds-links-between-nuclear-power-plants-hackers-north-korea-1849274

North Korea Blamed for Nuclear-Power Plant Hack

http://www.nasdaq.com/article/north-korea-blamed-for-nuclearpower-plant-hack-20150317-00267

UPDATE 2-S.Korea blames N.Korea for December hack on nuclear operator

http://www.reuters.com/article/2015/03/17/nuclear-southkorea-northkorea-idUSL3N0WJ2DX20150317

North Korea Blamed for Nuclear-Power Plant Hack

Seoul says Pyongyang was behind cyerbattacks on nuclear-power plant operator Korea Hydro

http://www.wsj.com/articles/north-korea-blamed-for-nuclear-power-plant-hack-1426589324