From my XPerience
At home the XP box is blocked from the interwibbles. It is occasionally allowed to access the web for this and that, but is then off the web again.
We have an xp box here on the worksite, and it only gets fired up when a report needs to be generated and sent using software that doesn't like Win7 or above.
I'm sure the missus fired up her xp box to move some photos to another device, and stopped to surf the web for a moment.