Microsoft could find themselves in trouble over this one. As the quote states, many companies require testing of patches before they are installed, including many in my area. There have been too many problems with some Microsoft patches in the past, including patches to the auto update system to allow automatic updates on networks with lots of machines. And, if they are automatically updating this in stealth mode, who knows what else they may decide to update. It would appear to be in violation of their own stated policies on this also.