"We asked ourselves whether our systems were susceptible to a hacking attack. This is absolutely impossible. This is absolutely out of the question," Kosachev said during a meeting with international observers.
Russia's presidential election is scheduled for Sunday, March 18.
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A total of eight candidates are running for president this year, namely: Sergey Baburin from the All-People's Union party, Communist Party candidate Pavel Grudinin, incumbent Russian President Vladimir Putin, Civil Initiative party candidate Ksenia Sobchak, Communists of Russia party chairman Maxim Suraykin, Presidential Commissioner for Entrepreneurs’ Rights Boris Titov, co-founder of the Yabloko party Grigory Yavlinsky, and head of the Liberal Democratic Party of Russia Vladimir Zhirinovsky.