Center for Information Technology Policy, Princeton University >> Summary

The Diebold AccuVote-TS and its newer relative the AccuVote-TSx are together the most widely deployed electronic voting platform in the United States. In the November 2006 general election, these machines are scheduled to be used in 357 counties representing nearly 10% of registered voters. Approximately half these counties — including all of Maryland and Georgia — will employ the AccuVote-TS model. More than 33,000 of the TS machines are in service nationwide.

This paper reports on our study of an AccuVote-TS, which we obtained from a private party. We analyzed the machine’s hardware and software, performed experiments on it, and considered whether real election practices would leave it suitably secure. We found that the machine is vulnerable to a number of extremely serious attacks that undermine the accuracy and credibility of the vote counts it produces. itpolicy.princeton.edu