Learn a lesson from Brasil, bunch of re****ecks!
We have successfully installed an automated voting system here.
The machines themselves cannot be accessed without breaking any seals in the screws (if there are screws closing it, the thing looked like a sealed brick to me). The machines are carried around, to voting places and back, in armored trucks, just like if they are worth their weight in gold. Even if you manage to steal any machine, tampering would be evident.
There are no wireless access, whatsoever. You have to bribe the election official if you want access to the voting machine, like any other paper ballot system, so it is not the system's fault. Even if you successfully bribe a election official, to get a box tampered, the sum of votes must check with the expected number of voters, so no graveyard voting... you would have to bribe the whole chain of command all the way up... and that's the only way out for a cheater, the human side.
There is a different number for each voter, just like a social security number, and each number can only be entered once. THE SOURCE CODE IS OPEN FOR INSPECTION BY THE ELECTORAL JUSTICE. There you go, bribe the entire Electoral Justice!
Every machine prints its result, and it is stored in a sealed bag, should the electronic part ever get damaged, or malfunctioned, which is more likely. The printed result is treated just like the paper ballots, and it is cross-checked with the electronic results upon conference in the Electoral Justice. (you don't have 50+ pieces of paper, you only one with the results, so the manual adding would be faster.) Should the machine fail before the end of election (dropped out of the table by wire tripping is not unheard of), there are paper ballots as backup.
In every voting place you have inspectors from each party, and we don't have just Republicans and Democrats, we have some 15+ different parties in some places.
No matter how broad the election is (Mayor, President, whatever) the results are counted within 48 hours, not 48 days...
There is no Linux or Windoze on the box, so even if you manage to hack into it, it wouldn't talk to anything else. Not to mention that the election official can only input the "social security" number of the next voter in a special keypad close to the voting machine, allowing him to vote. If the cable to this keypad is broken or disconnected, the machine craps out. Plus, the machine isn't entirely covered, it resembles an ATM machine where only the keyboard is covered, so everybody (looking impatiently at your back) would notice you crouching on the floor trying to reach the cable anyway.
PS. I used the term Electoral Justice in translation for "Justiça Eleitoral" because I don't know the equivalent US name for it.
The system works great, instead of the shameful Florida recount that put that moron in the US govt.