Why is facebook sending all my friends spam messages on chat?

[Giant]

So i log on and i see I am telling everyone on chat to go on some spy thing. its obviously some virus. everyone is getting pissed and i want it to stop. please help

[dannyboy2111]

its because they logged onto a fake facebook page or clicked on a link that had a virus in it and now there facebook is being controlled

[Amber]

my coat is in the closet!

[z z z z]

Anything being posted automatically is because you have applications enabled. Perhaps you visited one of those spam messages and now it's controlling your account and doing whatever it wants. You need to disable applications or go through and delete any applications you aren't using. One that comes to mind is "omg this girl killed herself after her dad posted this on her wall". These things are considered junk, spam, and may even contain viruses. Never click on them because it will enable an application and replicate itself for all your friends to get infected too.