08/30/2013 09:38 pm ET

U.S. Spy Agencies Mounted 231 Offensive Cyber-Operations In 2011, Documents Show

U.S. intelligence services carried out 231 offensive cyber-operations in 2011, the leading edge of a clandestine campaign that embraces the Internet as a theater of spying, sabotage and war, according to top-secret documents obtained by The Washington Post.

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