Like the Nanny state trying to save us from ourselves, Microsoft started pushing SharePoint patching into automatic updates.
If your WinTel team and corporate governance folks are in alignment on best practice, they would avoid automatic patching like an Ebola tent without protective gear. If they do allow Windows Update to patch server OSs and applications, you might want to have a little chat with your CIO. But that’s getting off topic.
The reports from system administrators who have been victimized by automatic patching are unpleasant. Learn from them by making sure your SharePoint (and associated) servers are configured for manual patching only! Stop everything else that you’re doing and read this post from Todd Klindt NOW! Don’t Enable Automatic Updates on SharePoint Servers