At some point in 2012, The State Department bans the use of remote-access software for its technology officials to maintain unclassified servers, unless a waiver is given. It also bans all instances of remotely connecting to classified servers. However, according to records from December 2012, Clinton’s private email server continues to use remote-access software, and no evidence of a waiver allowing this has yet emerged.
Computer security expert Mikko Hypponen will say in 2015 that the use of remote-access software on her server was “clearly serious” and could have allowed hackers to run malicious software on it. (The Associated Press, 10/13/2015)