Though the FBI has not publicly identified any of the victims, officials believe prominent political figures are among those whose communications were accessed.

As more is learned about the Salt Typhoon breach that it attributed to China, officials are laying the blame on companies that were slow to identify

The White House said Friday that a ninth U.S. telecommunications company has been hacked as part of a Chinese espionage campaign, but China has denied responsibility.

A ninth U.S. telecom firm was confirmed to have been hacked as part of a sprawling Chinese espionage campaign, a White House official said.