When, by early October, the decision was made, the talk shifted to who would make the announcement. In December 2014, it was the FBI that publicly pointed the finger at North Korea for hacking Sony Pictures Entertainment and damaging its computers. That was because the attribution to Pyongyang was based on the FBI investigation, said a senior administration official. In the Russian case, the attribution was based on a fusion of intelligence from intelligence agencies, the bureau and private-sector cyber experts, the official said. "So it made sense that the people who were responsible for integrating all of that information" -- the ODNI -- should be part of the announcement, he said.