https://www.riskbasedsecurity.com/2014/12/a-breakdown-and-analysis-of-the-
december-2014-sony-hack/
"...But its unlikely that its N Korea.At this point, it certainly could be
North Korea. Or China. Or a group of people with no political affiliation,
laughing at their tricks that have thrown the rest of society for a loop. As
we have said before, it would be best if we reserve judgement until there
is a documented forensic trail that truly establishes some level of
attribution with certainty. "