One example is that a voting machine (depending on how it is built) can either provide or fail to provide secrecy for the voter. If the fact that a voter cast a

One example is that a voting machine (depending on how it is built) can either provide or fail to provide secrecy for the voter. If the fact that a voter cast a vote is public knowledge but HOW they voted is well concealed, then certain kinds of induced votes ("vote for the right guy or I'll beat you up afterward") are not possible.