Hacked voter registration systems: a recipe for election chaos

Hacking a voter registration system could deny voters their ballots

How do you disrupt the U.S. election? Hacking a voter registration database could very well do just that.

Imagine thousands or even millions of citizens' names mysteriously disappearing from a database. Then when election day comes along, they find out they aren't registered to vote.  

Some security experts warn that this scenario isn't totally far-fetched and could deny citizens from casting ballots.

"If that happens to a few voters here and a few there, it's not a big deal," said Dan Wallach, a professor at Rice University who studies electronic voting systems. "If that happens to millions of voters, the processes and procedures we have would grind to a halt."

Hackers have set off worries about voter registration tampering in recent months, when they were detected targeting state election systems. In one of those cases, the perpetrators stole the login credentials of a state county official -- potentially allowing hackers to modify or delete the voter registration records within the jurisdiction.

In late September, FBI Director James Comey told lawmakers hackers have targeted additional election databases in several states.

Polling places, however, have one reliable safeguard against this potential threat: the provisional ballot. Using this tool, people whose names were changed or deleted from the database could still vote, and voting officials would later check their ballots to confirm their eligibility.

The problem is that voting precincts generally only carry a limited number of provisional ballots, said Pamela Smith, the president of Verified Voting, a non-profit group focused on improving elections.  

"One of the biggest concerns would be is if this creates chaos at the polling place because there aren't enough provisional ballots," she added.

Hackers with access to a voter registration database could also tamper with the election in other ways. Changing people's addresses, for instance, could alter where their mail-in ballots are sent to.

"If your ballot got misdirected, you might not realize it until it was too late," Smith said.

How secure voter registration systems actually are is unclear. Researchers have long warned about vulnerabilities in electronic voting machines, many of which are outdated. But no wide-ranging study has been done on the voter registration systems across the U.S., said Harri Hursti, CTO at security provider Zyptonite and an expert on hacking voting machines.

"The voter registration systems are not cataloged in the same way as voting machines," he said. "There's no certification process for them because it's not considered voting."

However, many voter registration systems across the U.S. are already online, putting them at potential risk of hacking, Hursti added.

The FBI has already warned election officials about one particular instance. In August, the agency released a bulletin, stating that one election site had been hit with an SQL injection attack -- a common hacking technique used to tamper with a website.

There's certainly security risks that need to be addressed, said Tod Beardsley, research manager at security firm Rapid7. "If there's an appearance of tampering, then you can bring doubt about the election's veracity," he said.

Nevertheless, hacking an election would be far from easy, he added. For example, there's no central authority when it comes to ballot counting or voter registration. Instead, management of U.S. elections is spread out across 50 different states, and then to thousands of counties.

"The idea that Russian hackers can just come in and hack the election would take a lot of work," he said. "It's way cheaper to bribe an election official, a tried and true way of election tampering."

Los Angeles County, home to 4.8 million registered voters, also seems to be aware of the risks.

"L.A. County's voter registration system is not public-facing and is not connected to the Internet," the county clerk's office said in an email.

All voter registration data available on public-facing websites is read-only, the office added.

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