Texas Voting Machines - Rig an Election with 1 Password

The Hart Intercivic voting system, used in at least 16 States, allows anyone with access and a passcode to modify vote totals from an election without leaving any record of the modification. Even worse, the same passcode resides on all machines and in every storage device, waiting to be extracted and exploited.

http://www.verifiedvotingfoundation.org/article.php?id=6529