Note: The report cites
(a) Bill Gertz, White House Hack Attack; Chinese hackers break in to White House military office network in charge of the president’s nuclear football. Washington Free Beacon, Sept 30, 2012 http://freebeacon.com/white-house-hack-attack/
("Hackers linked to China’s government broke into one of the U.S. government’s most sensitive computer networks, breaching a system used by the White House Military Office for nuclear commands, according to defense and intelligence officials familiar with the incident")
(b) Press Briefing: Press Gaggle by Press Secretary Jay Carney, White House Offic eof Press Secretary, 10/1/12 (at Westin Lake Las Vegas, Las Vegas, Nevada) http://www.whitehouse.gov/the-pr ... ry-jay-carney-10112
Start with the question: "We saw the cyber-attack information from a background source."