Obama administration imposes sanctions on North Korea, after Sony hack

The Obama administration on Friday imposed a wave of sanctions against members of the North Korean government, amounting to the U.S. government's first official response to the cyber-attack against Sony Pictures Entertainment.

Despite lingering questions from private security analysts over whether North Korea was responsible for the hack -- as the FBI has alleged -- the White House described the new sanctions as retaliation against Pyongyang.

"We take seriously North Korea's attack that aimed to create destructive financial effects on a U.S. company and to threaten artists and other individuals with the goal of restricting their right to free expression," White House Press Secretary Josh Earnest said in a statement. "As the president has said, our response to North Korea's attack against Sony Pictures Entertainment will be proportional, and will take place at a time and in a manner of our choosing. Today's actions are the first aspect of our response."