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On Wednesday, one alternate theory emerged. Computational linguists at Taia Global, a cybersecurity consultancy, performed a linguistic analysis of the hackers’ online messages — which were all written in imperfect English — and concluded that based on translation errors and phrasing, the attackers are more likely to be Russian speakers than Korean speakers.
http://bits.blogs.nytimes.com//2014/12/24/new-study-adds-to-skepticism-among-security-experts-that-north-korea-was-behind-sony-hack/
Read this http://20committee.com/2014/12/23/beware-putins-special-war-in-2015/