You may have heard of Mirai - an exploit that turns Internet of Things - IoT - devices, particularly webcams, into a botnet. Somebody wrote an exploit called BrickerBot that permanently disables - "bricks" - them. A vigilante worm. Don't buy an internet-connected fridge or cooker!

Meanwhile there is a new exploit called EternalRocks which uses 7 of the leaked NSA tools - WannaCrypt used a mere two. And some polititions advocate back doors in encryption!

Turns out it was mainly Win 7 machines affected by WannaCrypt, so it was people who didn't install updates. Perhaps some if them were avoiding Win 10. Win 10 itself is not vulnerable to these exploits. Perhaps NSA hasn't had its Win 10 hacks stolen yet.