Computers of Obama, McCain campaigns hacked

From CNN Correspondent Brian Todd, CNN Senior Producer Kevin Bohn

Computers at the headquarters of the Obama and McCain campaigns were hacked CNN confirms.
WASHINGTON (CNN) – Computers at the headquarters of the Barack Obama and John McCain campaigns were hacked in mid-summer by a foreign government or organization, a source with knowledge of the incidents confirms to CNN.
Another source, a law enforcement official familiar with the investigation, says federal investigators approached both campaigns with information the U.S. government had about the hacking, and the campaigns then hired private companies to mitigate the problem.
U.S. authorities, according to one of the sources, believe they know who the foreign entity responsible for the hacking is, but refused to identify it in any way, including what country.
The source, confirming the attacks that were first reported by Newsweek, said the sophisticated intrusions appeared aimed at gaining information about the evolution of policy positions in order to gain leverage in future dealings with whoever was elected.
The FBI is investigating, one of the sources confirmed to CNN. The FBI and Secret Service refused