Does it seem a little odd for the 5 eyes to be weighing in while the us gov is silent? I am not sure how to read this but it is weird. I have never seen them make a public statement on a hack in a way specific to specific companies (and not others mentioned in the bloomberg article).
Even if taken at face value, it can only mean 2 things. 1. They already, thouroughly investigated it (draw your own conclusions what they found or any involvement) or 2. They just issued an official statement without possibly having the time to investigate the merits of the accusation. This not only doesn't pass the sniff test, its evidince of yet another turd on our lawn.