Get off my lawn! Jeez I kinda feel violated.
Microsoft apparently pushed out a Windows Update a few weeks ago of which no one had been notified. There were 9 files, on both XP and Vista, pertaining to the Windows Update process which were modified. All the files reside in the WindowsSystem32 folder on your machine.
So why is this such a big deal? As it turns out this update was sent to all Windows computers, even those that have the automatic installation of Windows Updates disabled.
Read more about what Microsoft had to say, and how to tell if you’ve been secretly updated.
Source: CyberNetNews