Conficker was responsible for launching targeted attacks on the U.S. Navy, the White House, and other government organizations. The Pentagon has also been infected by MyDoom and Solar Sunrise. Solar Sunrise affected the Department of Defense, while MyDoom launched a series of denial of service attacks.
The Pentagon, CIA and the White House were targeted by CodeRed. The CodeRed virus created a remote attack against the White House's email inboxes. The Department of Defense took action on CodeRed during its spread.