The Internet Research Agency (IRA), based in Saint Petersburg, Russia and described as a troll farm, created thousands of social media accounts that purported to be Americans supporting radical political groups and planned or promoted events in support of Trump and against Clinton. They reached millions of social media users between 2013 and 2017. Fabricated articles and disinformation were spread from Russian government-controlled media, and promoted on social media. Additionally, computer hackers affiliated with the Russian military intelligence service (GRU) infiltrated information systems of the Democratic National Committee (DNC), the Democratic Congressional Campaign Committee (DCCC), and Clinton campaign officials, notably chairman John Podesta, and publicly released stolen files and emails through DCLeaks, Guccifer 2.0 and WikiLeaks during the election campaign. Several individuals connected to Russia contacted various Trump campaign associates, offering business opportunities to the Trump Organization and proferring damaging information on Clinton. Russian government officials have denied involvement in any of the hacks or leaks.