After the Toorcon 12 hacker conference in San Diego on Sunday, public and Open WiFi networks cannot be trusted for security any more. Eric Butler, a freelance web application and software developer from Seattle, WA revealed to the world a free Firefox Plug-in called "Firesheep".
This plugin take advantage of the a security issue which is very prevalent across an array websites which include Facebook and Twitter. When logging into a website you usually start by submitting your username and password. The remote server then verifies the information to see if an account matching with the provided information exists and if so, replies back to device with a "cookie" which is used by your browser for all subsequent requests or information transfer.
