Yeah, it's kinda scary to think about it... Even though A.I would be very useful in certain ways but if we think about robots getting enough smart to hack some systems, it would be a huge problem. I know it seems like a crazy Sci-Fi movie, but I think it's interesting to discuss. I mean, think about it: the technology world is so abstract to humans, we can talk about softwares, systems and all but it is still an abstract idea, we can't see with our eyes the information travelling through the internet, but theses robots would work way better with technology than us, they could easily use it against us even in "avengers: age of ultron" they showed something similar to this idea.