You have your computer set to autoupdate. Some folks don't. Some organizations will not allow autoupdates because it might break, or reboot, a system which is required to be operational 24X7. Microsoft is updating some of the computers set to not autoupdate. Microsoft is not telling people they're installing updates even if it's supposed to tell them. You said you try and track updates, do you really know what Microsoft has updated if it isn't telling you it did?
As to Linux/Mac? Dunno exactly. My Linux machines are set for manual. Every Friday I'll go out and see what was available and whether I want it or not. This is adjustable. I could have set it to do autoupdates if I want. I have no experience with a Mac.
The best of ZDNet, delivered
ZDNet Newsletters
Get the best of ZDNet delivered straight to your inbox
