Reince Priebus: 'RNC Was Not Hacked'

He refuted reports that Russians hacked the Republican National Committee.

One person with direct knowledge tells ABC News there is no doubt senior GOP officials were hacked, but that there is no evidence the RNC as an organization was seriously compromised.

Priebus also asserted that a report in October from 17 different U.S. intelligence agencies did not definitively point to Russia as being behind hacks into election-related computer systems.

"They didn’t conclude it was Russia," Priebus told Stephanopoulos.

But a joint statement in October by the Department Of Homeland Security and the office of the director of national intelligence directly names the Russian government. "The U.S. intelligence community is confident that the Russian government directed the recent compromises of e-mails from U.S. persons and institutions, including from U.S. political organizations," the statement reads.

Priebus also said Sunday that whether it was Russia or another country engaged in hacking the accounts of U.S. political institutions, such cyberattacks must be stopped.

"I don’t care if it’s Russia or whoever. They shouldn’t -- we’re going to protect Americans. We don’t want these countries, or whoever else these people are, hacking our country, our parties," Priebus told Stephanopoulos.

The Trump transition team released a statement Friday responding to news reports about Russian hacking by questioning the credibility of U.S. intelligence agencies.

But Priebus told Stephanopoulos that Trump "trusts the CIA."

Priebus also criticized the media for running with the story about the RNC getting hacked.

"It is unbelievable that the press would run with unnamed sources about something, that they agree is inconclusive, but ignore the fact that the people actually involved in the other side of the story are telling you it's not true," Priebus said.

ABC News' Justin Fishel contributed to this report.