China is the country with known cyber attacks on the US(according to our government, but hey we are accepting the FBI's answer that this was NK). China has also

China is the country with known cyber attacks on the US(according to our government, but hey we are accepting the FBI's answer that this was NK). China has also been posturing with Japan in the surrounding waters(Sony is a Japanese company no matter what legal wrangling they use for Sony Pictures Entertainment). China is also a border country of NK, how inconceivable is it that a North(or South) Korean/s was working for China? But apparently NK was bothered enough by another comedy movie making fun of their backward country that they executed a sophisticated months long cyber attack and then released the spoils of war for free with only some anonymous postings detailing their motives.