Didn't mean to be snarky, I just keep seeing all of the "North Korea is behind in technology" talk with not a whole lot of evidence to support it. Thinking that any nation doesn't have the technological capability to perform some complex hack is a little misguided, in my opinion. The average citizen may not be up to snuff technologically, but these are governments we're talking about.
Even so, this article actually raises more question than it answers. Was Sony's security really weak or was the hack very clever? It may have been the former and if so, some other people might have the same information for quite some time now.