Voting Machines in FL tampered with during 2004 election

The evidence indicates that someone accessed the computers after the L&A and before the election, and that this access caused a change in the machine's reporting functions, at least for date and time. Such access would take a high degree of inside access. It is not known whether any other changes were introduced into the voting machines at this time. As learned in the Hursti experiments, it is possible for an insider to access the machines and leave no trace, but sometimes a hasty or clumsy access (such as forgetting to enter a correct date/time value when altering a record) will leave telltale tracks.

-Black Box Voting