The GRU also stole documents from the DNC network shortly after gaining access. On April 22, 2016, the GRU copied files from the DNC network to GRU-controlled computers. Stolen documents included the DNC’s opposition research into candidate Trump.134 Between approximately May 25, 2016 and June 1, 2016, GRU officers accessed the DNC’s mail server from a GRU-controlled computer leased inside the United States.135 During these connections, Unit 26165 officers appear to have stolen thousands of emails and attachments, which were later released by WikiLeaks in July 2016.