I have been getting an NIS message, now and then, that my NIS has been disabled. I believe I have Only gotten it, after leaving the pc alone for awhile. I see the message, and open my NIS window, and see that everything is SECURE, and looks like all is Enabled. I even run a Liveupdate, and it looks like it works. Actually, I think this might have something to do, with an Auto Liveupdate that maybe made changes that temporarily disabled NIS, to complete the install??? NIS might pick up on this, and say it was disabled, but, with the update done, it is back and working. I have checked NIS Recent History. There were a couple of auto updates, while the pc was idle. The Liveupdates show as Completed. "Antiphishing definitions version" downloads show as "Detected". There is a Downloaded and a Using, for these.
When I get to my computer, and see these "Disabled" messages, it scares me for a few moments. Then, I see the Green checkmark on the NIS icon, and see that all looks ok, otherwise. The message disappears, shortly after I mouse over it.