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Now Playing: 11-15-12 Marketplace Tech Report

Get to know this phrase: Cyber Ops. President Obama has reportedly signed a secret directive that sets out rules for how the military might get aggressive in the face of a cyber attack. The order acknowledges that the military response to a computer attack isn't just battening down the hatches on government computers to stop hackers or malicious software. Washington Post national security correspondent Ellen Nakashima found out about the directive and says it spells out what's considered defensive versus offensive.