Hacking a Soda Machine
The idea is simple: prevent the machine from completing an action and place it in an error state, and then exploit that state. In this instance, the hacker prevents the machine from dispensing the drink bottle. The machine refunds the money, but the bottle stays on the conveyor belt. Then the hacker purchases a second bottle, and receives them both.
Max Gashkov • November 19, 2007 2:31 PM
That’s much more interesting I think:
http://www.5min.com/Video/How-to-get-a-free-meal-at-McDonalds-4186