Experts say election security in the US is improving , but there 's little to do . About 45 million Americans will cast an electronic ballot with no paper trail . ` ` High - school level '' coding skills are all that 's needed to hack a machine . Election officials are going back to paper ballots , but money is a concern .
Experts say voting security in the U.S. is improving , but there 's work to do . About 45 million Americans will cast an electronic ballot with no paper trail . `` High-school level '' coding skills are all that 's needed to hack a machine . Election officials are moving back to paper ballots , but money is a concern .