Void the warranty! (23c3)

We're surrounded by blackboxes containing digital technology nowadays. There are complex devices like cell phones as well as more simple ones that don't look very digital at all. This lecture shall motivate the listener to take more electronic things apart, examine the mode of operation and modify it. about this event: http://events.ccc.de/congress/2006/Fahrplan/events/1622.en.html