Below is a link to the Powerline blog article on the hacking of White House and other federal computers by either the Russians or the Chinese. Apparently, the White House was oblivious to this major, MAJOR, security breach until told of it by the British or Israelis.  This is hard to imagine, but it happened. 

http://www.powerlineblog.com/archives/2014/10/more-on-the-obama-administration-scandal-that-the-washington-press-corps-tried-to-bury.php