Summary: The three most widely purchased types of electronic voting systems are all disastrously vulnerable to fraudulent manipulation through software. Making a paper copy of each vote cast, which the voter can review, is not very useful unless random audits are always done. Voting machines with wireless connections can be cracked even more easily than others and by a larger variety of possible malfeasors. Very few states have any election procedures in place that could detect software attacks, either in real time or after the fact.