There have been concerns about electronic voting machines during this year's general election.
Now, experts say personal information may have been stolen in Illinois and Arizona. Security experts say it's likely to continue to happen between now and the November election.
The hacks on personal information, such as driver's license numbers, leaves voters vulnerable. A cyber security expert says election officials across the country need to take all personal information offline for it to truly be safe.
The Department of Homeland Security Secretary revealed Wednesday that the department has help 18 states secure their voter systems.