Alva Review-Courier -

TOKYO (AP) — A couple of things about the WannaCry cyberattack are certain. It was the biggest in history and it's a scary preview of things to come — we're all going to have to get used to hearing the word "ransomware." But one thing is a lot less clear: whether North Korea had anything to do with it.

Despite bits and pieces of evidence that suggest a possible North Korea link, experts warn there is nothing conclusive yet — and a lot of reasons to be dubious. Why, for example, would Pyongyang carry out a big hack that hurt its two closest strategic partners more than anyone else? And for what...