Experts say voting security in the U.S. is improving , but there 's work to do . However , there are still some concerns in hotly contested states like Ohio . The FBI has been investigating Russian interference for months and issued a warning about foreign hackers trying to influence last year's election. `` 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 .
Experts say voting security in the U.S. is improving , but there 's work to do . The FBI has been investigating Russian interference for months and issued a warning about foreign hackers trying to influence last year's election. `` 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 .