U.S. Weighs Response to Sony Cyberattack, With North Korea Confrontation Possible

A White House official said on Thursday that the administration was considering a “proportional response” against those who hacked into Sony Pictures computers, a retaliation that could thrust the United States into a direct confrontation with North Korea. Officials would not describe what such a response might entail, but they stressed that the episode had become a major concern at the upper levels of government, including President Obama, who lately has been discussing the issue with aides every day.

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