U.S.-- Imagine this: you're sitting in a coffee shop surfing your facebook page, and all of the sudden the stranger sitting at the next table is updating your status and sending messages to your friends from your account.  Well, now this could easily happen and anyone can do it.

A new software allows free wifi users look at what another user is doing on the internet.  It's a firefox extension called firesheep.  It's a simple download, and it's free.

Douglas Hine with PC Warehouse in Tyler says firesheep allows users to sidejack-- or literally steal the web session of another.  With just one click...someone can take over another user's page if they're in the same wifi network

For secure connections, officials say avoid going to sites with usernames and passwords and use sites that have "https."

Firesheep was created by Eric Butler, who says he hopes this will force sites to be more secure.  He says they should have prevented this a long time ago, when they found out about sidejacking.