"Everything Dragos describes is plausible. It's not the mainstream of "hacking", but neither is it "nation state" level hacking. That it's all so plausible leads credence to the idea that Dragos isn't imagining it. Of course, since Dragos is an expert, his imagination is likely be full of factually correct details anyway, so maybe the plausibility of these hacks isn't such guarantee of truth.
Dragos has only been analyzing this for a few weeks. Presumably, he won't give us the full details for us to check out until the next CanSecWest conference. Until then, I guess we are all just blowing smoke about whether this is "real" or not."
I have read multiple articles regarding this topic, and this does look to be possable. Even in the article linked above, the author states this would be possible, though it has not been seen previously.