Why it isn't an option yet:
"Internet voting sounds like it would be so convenient and such a modern application of technology, but when we get down into the details about what it would take for Internet voting to do well, it turns out to be an incredibly difficult security problem," J. Alex Halderman, an assistant professor of computer science at the University of Michigan, told Live Science. Halderman added that the most secure networks in the world fall victim to hacker attacks all the time. And what better target for a catastrophic data breach than an election? "So protecting against that kind of threat if you’re doing Internet voting is going be very hard, especially if Google and the Pentagon can’t get this right," Halderman said.