Originally Posted by cheezydemon3
Online bill pay could be accessed and payment sent to someone, but that would take some serious organization for the infiltrator to benefit.
No, this can't be done with it. Your online payment processor would use SSL which encrypts between you and the bank, which FireSheep can't crack.
FireSheep only works on an open WiFi (doesn't work if you had to enter a WiFi password to attach to the access point) and also only works if the site does not use encryption for page transactions (posting). Also, many e-mail systems are transferring message to/from you unencrypted as well.
I personally have a home server and use a VPN connection whenever I'm on someone elses WiFi, thus making my browsing secure. I've recently added several family members and relatives to my VPN connection so they too can have secure browsing.