Hand-marked paper ballots are widely seen as most secure, but advocates say voting machines are best for disabled access

Russian attacks on American democracy in 2016, carried out over the internet, have triggered a national debate over the use of technology in the United States’ upcoming 2020 elections.

But some of the best ways to beef up the security of the voting process and fight off future cyber-attacks could have an unintended consequence: limiting access to the vote for people with disabilities.