The Department of Homeland Security has officially classified election systems as critical infrastructure in order to keep them safe from tampering. Election infrastructure include storage facilities, polling places, voter registration databases, voting machines and other systems that help manage the election process and report and display its results. DHS' announcement came after US intelligence released a report directly accusing Russian President Vladimir Putin of influencing the US presidential elections, mostly by ordering the use of cyber infiltration. If you'll recall, cyberattackers hacked into the Democratic National Committee's machines, as well as into over 20 states' election systems. However, none of the machines that were compromised were used for vote tallying.