Iranian hackers charged in alleged targeting of Trump campaign, sources say

Federal prosecutors have secured criminal charges against multiple Iranian hackers for allegedly targeting members of former President Donald Trump's presidential campaign as part of a malicious cyber scheme, multiple sources familiar with the investigation confirmed to CBS News. 

The Iranian hackers were indicted by a grand jury on Thursday and the charges could be announced as early as Friday, the sources said. The nature of the allegations and the names of the defendants were unknown as charging documents remain under seal. The exact number of people charged was also not confirmed. 

ABC News and Politico first reported on elements of the charges.