The hacker tool Firesheep spreads with tremendous speed on the internet after beeing in the headlines lately.
Just a few days ago, an American security expert, Eric Butler, released a tool called Firesheep. This Firefox add-on lets anyone without any particular computer skills hijack login information for various social networks in open wireless network with just two clicks.
There is already a Firefox work around for this LOLOL ... but obviously still deserves some attention for those who don't know.