Government investigators fear the hackers behind the unprecedented attack on Sony's Hollywood studio may never be caught if they are under the protection of North Korea, a U.S. official said on Wednesday.
The law enforcement official, who declined to be identified because the investigation is ongoing, said authorities will require significant time to definitively confirm their suspicions that North Korea sponsored the attack, which severely damaged the movie studio's network.
The likelihood of the hackers being brought to justice in the United States is presently regarded as low, said the official.
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