U.S. already at war in cyberspace, experts say

Cyber warfare is a reality, and the United States already has been engaged by a number of adversaries, a panel of experts said Wednesday at the RSA Security Conference. Because the war involves infiltration, espionage and sabotage rather than conventional weapons, it looks much like the Cold War waged by the United States and the Soviet Union in the post-World War II 20th century, according to the panelists.

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