I won't be in the slightest bit surprised if Microsoft announce in, say, 3-4 years:
"terribly sorry kids, it seems we were accidentally recording every keystroke and capturing from your webcam 24/7 anyway, some pesky bug!". I expect some people might actually buy that line a couple times before they finally figure out what Microsoft are really saying
Maybe,
but I think much greater danger are Smartphones.
Google is collecting much more information than Microsoft could ever imagine.
That includes your location, voice and text conversations, and who knows what more...