President Obama received an intelligence briefing on the Russian hacking Thursday indicating that Moscow had launched cyberattacks not just against the Democratic National Committee, but also the White House, the State Department, the Joint Chiefs of Staff and US corporations, it was reported.

The briefing, which laid out numerous hacking attempts linked to Russia, was reported by “NBC Nightly News.”

The report was quickly blasted by Donald Trump, who has repeatedly rejected allegations of Russian meddling in the presidential election.

“How did NBC get ‘an exclusive look into the top secret report he (Obama) was presented?’ ” the president-elect tweeted shortly after it aired. “Who gave them this report and why? Politics!”

The cyberattacks dated back to 2008. While some were successful, others were thwarted, according to NBC, which did not identify the targeted corporations.

The attacks were meant to disrupt the democratic process and also serve as retaliation for the Obama administration’s adversarial stance against Russian President Vladimir Putin, according to the report.

Trump is scheduled to receive his own high-level intelligence briefing on Russian cyberattacks Friday.

It was also reported Thursday that intelligence agencies had identified the entities responsible for transferring the hacked DNC e-mails from the Russians to WikiLeaks.

Obama received the information about how the Russians disseminated the materials, CNN reported.

The reports emerged after WikiLeaks founder Julian Assange denied that Russia had been the source of the e-mails, during an interview with Fox News’ Sean Hannity that aired Tuesday.

Assange was excoriated Thursday during a Senate Armed Services Committee hearing, where lawmakers and top intelligence officials said his claims held no credibility.

Meanwhile, The Washington Post reported that senior Russian government officials celebrated Trump’s victory as a win for Moscow’s place on the world stage. US intelligence captured communications among the officials who congratulated each other on the Republican’s victory.

Trump has publicly dismissed claims of any Russian involvement in the hackings, and has cited Assange’s denial of a Moscow link.