Three Vendors, Numerous Failures
Sequoia Voting Systems: They were able to gain physical access to the system by removing screws to bypass locks. They also discovered several ways to overwrite the firmware of the Sequoia system.
Diebold Elections Systems: Testers were able to exploit vulnerabilities in the operating system and take security-related actions that the server did not record in its audit logs.
Hart Intercivic: The team developed a device that caused Hart's system to authorize access codes without poll worker intervention.
Surprise, surprise. Whats more, I'd be willing to bet hard cash money, this problem will not be fixed by the end of 08.