Using a public Wi-Fi? Firesheep is endangering your security. First…what is it?
Firesheep is an extension developed for the Firefox web browser. The extension uses a packet sniffer to intercept unencrypted cookies from certain websites (such as Twitter, Facebook, ebay, amazon) as the cookies are transmitted over networks, exploiting session hacking vulnerabilities. It shows the discovered identities on a sidebar displayed in the browser, and allows the user to instantly take on the log-in credentials of the user by double-clicking on the victim’s name.
So when you are using a public Wi-Fi network anyone else on the same network running firefox with the firesheep extension will intercept your private information and steal it. I have used firefox and the firesheep extension here in NYC, we have a Starbucks right across the street, and basically I will NEVER use a public WiFi PERIOD unless its an emergency….