The access panel door on a Diebold AccuVote-TS voting machine – the door that protects the memory card that stores the votes, and is the main barrier to the injection of a virus – can be opened with a standard key that is widely available on the Internet...Link
Using such a standard key doesn’t provide much security, but it does allow Diebold to assert that their design uses a lock and key. Experts will recognize the same problem in Diebold’s use of encryption – they can say they use encryption, but they use it in a way that neutralizes its security benefits.
The bad guys don’t care whether you use encryption; they care whether they can read and modify your data. They don’t care whether your door has a lock on it; they care whether they can get it open. The checkbox approach to security works in press releases, but it doesn’t work in the field.