Washington (CNN)Russian hackers behind the damaging cyber intrusion of the State Department in recent months used that perch to penetrate sensitive parts of the White House computer system, according to U.S. officials briefed on the investigation.
To get to the White House, the hackers first broke into the State Department, investigators believe.

The State Department computer system has been bedeviled by signs that despite efforts to lock them out, the Russian hackers have been able to reenter the system. One official says the Russian hackers have "owned" the State Department system for months and it is not clear the hackers have been fully eradicated from the system.
http://www.cnn.com/2015/04/07/politi...-wh/index.html

Oops.