I thought both AMD and Intel chips were vulnerable to an exploit at one point... Can't remember what it was, but it was back in like January that I read an article on it and iirc it said something a long the lines of an intentional backdoor that was taken advantage of by the NSA or something?
Anyways on topic, this gave me a slight heart attack seeing as I only have Intel chips in my PCs right now. Luckily, only 2 of those devices are ones with vPro (tech?) in them, and they aren't mine, their from my dad's work.