The fix was in, and it was devilishly hard to detect. Software within electronic voting machines had been corrupted with malicious code squirreled away in images on the touch screen. When activated with a specific series of voting choices, the rogue program would tip the results of a precinct toward a certain candidate. Then the program would disappear without a trace. . . .
The fix was in, and it was devilishly hard to detect. Software within electronic voting machines had been corrupted with malicious code squirreled away in images on the touch screen. When activated with a specific series of voting choices, the rogue program would tip the results of a precinct toward a certain candidate. Then the program would disappear without a trace.

Luckily, the setting was not an election but a classroom exercise; the conspirators were students of Aviel D. Rubin, a professor at Johns Hopkins University. It might seem unusual to teach computer security through hacking, but a lot of what Professor Rubin does is unusual. He has become the face of a growing revolt against high-technology voting systems. His critiques have earned him a measure of fame, the enmity of the companies and their supporters among election officials, and laurels: in April, the Electronic Frontier Foundation gave him its Pioneer Award, one of the highest honors among the geekerati.

The push has had an effect on a maker of electronic voting machines, Diebold Inc., as well. California has banned the use of more than 14,000 electronic voting machines made by Diebold in the November election because of security and reliability concerns. Also, the company has warned that sales of election systems this year are slowing.

In April, the company said its first-quarter earnings rose 13 percent compared with the same quarter a year earlier. It also reported $29.2 million in revenue on nearly $500 million in sales in the latest period. But it lowered expectations for election systems sales for this year to a range of $80 million to $95 million from $100 million in sales a year earlier.