A short note...I was suprised with the way Firefox automatic update works. A positive suprise, I'll add. The info about security update appeared a minute or so after I ran FF, even before I learned about the patch.
One thing is important here, however. Making sure the update is authentic is a serious thing. Doing it wrong could cause enormous problems.
Write an attack
My favourite April 1st post this year: contest. A very special one. Bruce Schneier is asking for a movie plot showing a terrorist attack.
He's writing that the contest is real. It doesn't change my opinion concerning the best April 1 post.