Digital threats multiply ahead of 2020 US polls

It could be a manipulated video embarrassing a candidate. Or a computer voting system locked by ransomware. Or doubts about electronic voting machines with no paper backups.

As Americans prepare for 2020 elections, digital threats to election security are multiplying, stoking fears of a tainted outcome.

Worries are running high following revelations of a wide-ranging misinformation campaign on Facebook and other social platforms, largely directed by Russian operatives, in 2016.

This was described in detail by special counsel Robert Mueller, whose office obtained several indictments for election interference.

Cyber interference and disinformation operations surrounding elections "are part of a much larger, ongoing challenge to democracies everywhere," said a report from Stanford University's Cyber Policy Center.

Maurice Turner, an election security specialist with the Washington-based Center for Democracy & Technology, said these threats could lead to "a negative impact on voter confidence" in 2020.

The newest threat may be "deepfake" video and audio manipulated with artificial intelligence which can put words in the mouths of candidates. It might even show "unflattering or abusive images of women and minority aspirants in an effort to discredit them," said Darrell West with the Brookings Institution's Center for Technology Innovation, in an online report. "It is easy to manipulate still images or video footage to put someone in a compromising situation," West wrote.

Danielle Citron, a Boston University online safety expert, told a recent TedSummit talk that deepfakes "can exploit and magnify the deep distrust that we already have in politicians, business leaders and other influential leaders."