U.S. federal agencies hacked by foreign entity

The Department of Commerce and the U.S. Treasury were hacked in an undetected, monthslong operation. Experts believe the cyberattack was by a foreign entity, and many officials blame a Russia-affiliated group for the security breach. Jamil Jaffer, founder and executive director of the National Security Institute at George Mason University, joined CBSN's Elaine Quijano to discuss what we know so far about the hack.

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