If you have facebook make sure you check your privacy settings.
One of the things I noticed this morning is that it had changed many settings I previously had set to private/friends only so that now was open to all and sundry.
There was a reason why I kept certain things such as my gender, birthday and posts on my wall for friends only. I deliberately set them like that so I wasnt too happy at the popup this morning when I logged on it that told me I was now sharing this information to anyone.
I can go weeks/months without checking my FB so wonder how many other people wont be aware of these changes for a while.
I see the Beeb has now picked up on this too.
http://news.bbc.co.uk/1/hi/technology/8405334.stm