Anonymous officials in the CIA claim to have identified individual Russian agents who allegedly hacked into the Democratic National Committee's servers and stole emails.
"By October, it had become clear that the Russians were trying to help the Trump campaign,” said one anonymous CIA official with knowledge of the top secret report, according to Reuters.
The suspected Russian agents were not named.
The report was briefed to President Barack Obama on Jan. 5 and then briefed to President-elect Donald Trump on Jan. 6.
On Jan. 5, Trump's tweets indicated he was skeptical of the DNC's claims it was hacked by Russian intelligence agents.
“The Democratic National Committee would not allow the FBI to study or see its computer info after it was supposedly hacked by Russia......” Trump wrote. “So how and why are they so sure about hacking if they never even requested an examination of the computer servers? What is going on?”
Trump also questioned how media sources obtained leaks from the report.
“How did NBC get 'an exclusive look into the top secret report he (Obama) was presented?' Who gave them this report and why? Politics!” Trump wrote.
Thousands of emails from members of the DNC were stolen and then published on WikiLeaks during the 2016 presidential campaign.
Democrats have accused Russian intelligence officials of sabotaging former Democratic nominee Hillary Clinton's failed presidential campaign.
WikiLeaks founder Julian Assange has repeatedly denied that his organization obtained the emails from Russian intelligence officials and told Fox News that Clinton staffers were easily hacked.
"We published several ... emails which show [campaign chairman John] Podesta responding to a phishing email," Assange said. "Podesta gave out that his password was the word ‘password.’ His own staff said this email that you’ve received, this is totally legitimate. So, this is something ... a 14-year-old kid could have hacked Podesta that way."