The Flash Player allows web sites to set cookies called Local Shared Objects (LSO). LSO’s are capable of storing information for an indefinite amount of time, and unlike normal cookies they are not erased when you clear your browsing data. All the information in those cookies will remain accessible until they’re removed by the issuing website, or by you via a cumbersome and ridiculous process.

There’s no easy way to tell what sites are using flash cookies to track your movements. Worse yet, there is no need to have a flash GUI or visible application on the website for flash cookies to be present. In fact, most websites using flash for user tracking don’t create GUI’s, toolbars, or applications that you can actually see in your browser while browsing the site.

These cookies can contain personal information such as usernames and passwords and due to the increasing security vulnerabilities in Flash it would make sense to delete those cookies and avoid malicious websites from reading the information stored in them.

KFC comes in two flavors: A command line application and a GUI version. Mac OS X, Linux and Windows are supported natively.

Linux

• Supports the Gnome desktop.
  
• Full source included.
  

Download GUI for Linux
Download Command Line for Linux

Mac OS X

• Supports Leopard and Snow Leopard.
  
• Full source included on the command line.
  

Download GUI for Mac OS X
Download Command Line for Mac OS X

Windows

• Supports Windows XP, Vista and 7.
  
• Full source included on the command line.
  

Download GUI for Windows
Download Command Line for Windows