Hillary Clinton called for the U.S. to declare a "new doctrine" against cyberwarfare after Russia's attempts to meddle in the 2016 election and elsewhere.

During a wide-ranging keynote speech at Stanford University on Friday, Clinton said cyberattacks on vital infrastructure should be considered an act of war.

She largely couched this point on reports of Russians using cyber tactics to sway people's opinions during the 2016 campaign, including on social networks like Facebook and Twitter, as well as efforts to breach voting machines. Clinton said the Russians engaged in information warfare."

Russian interference, along with possible collusion between the Trump campaign and the Kremlin, is being investigated by special counsel Robert Mueller and a number of congressional panels.

Clinton also condemned a number of outlets and think tanks with "powerful right-wing interests," including Fox News and Breitbart News for how they report the news.

Clinton said there is a need for a "massive campaign" against "fake news," a term that has been coined by President Trump to slam outlets whose reporting he opposes.