WSJ:

In what is expected to be one of the biggest online votes conducted so far in the U.S., Utah residents will have the option of casting ballots in the Republican presidential contest using computers, tablets and smartphones next week.

In-person caucuses and absentee voting also will remain options for GOP voters in the March 22 contest. Democrats aren’t offering an online option.

It is the largest experiment with online presidential voting since 2004, when Michigan allowed Democrats to vote in a party caucus via the Internet. Estonia has had online voting in national elections since 2005, while Norway, France, Canada and Australia have experimented with it….

Skeptics say that it is unlikely to be adopted broadly, given the increasing awareness of cybersecurity and online vulnerabilities.

“The average citizen is starting to realize how insecure the Internet is,” said Avi Rubin, a computer security expert at Johns Hopkins University who has studied electronic voting systems.