Corrupting systems with handheld devices
There are no documented cases of actual election tampering involving electronic voting machines.
But in tests, researchers in Ohio and Colorado found that electronic voting systems could be corrupted with magnets or with Treos and other similar handheld devices.
In Colorado, two kinds of Sequoia Voting Systems electronic voting machines used in Denver and three other counties were decertified because of security weaknesses, including a lack of password protection. Equipment made by Election Systems and Software had programming errors. And optical scanning machines, made by Hart InterCivic, had an error rate of one out of every 100 votes during tests by the state.
"I was surprised," Colorado Secretary of State Mike Coffman said Friday of the failures his office found. "It's an awful position to be put in, but I feel strongly it's important that this equipment be secure and accurately count a vote."
Now some states are turning back to paper — in some cases, just weeks before primary elections.
California, Ohio and Florida have chosen to use scanning machines that count paper ballots electronically.
In Colorado, which has spent $41 million in federal grants on electronic systems, many of the state's nearly 3 million registered voters — and the county officials who conduct the voting — do not know what their elections will look like in 2008.
Coffman and Colorado's clerks and recorders are in a dispute over whether to use mail-in ballots or cast paper ballots at polling places.