U.S. federal authorities are investigating an effort to impersonate White House Chief of Staff Susie Wiles, the Wall Street Journal reported on Thursday, citing people familiar with the matter.
The report said Wiles had told associates that some of her cellphone contacts had been hacked, allowing the impersonator to access private phone numbers.
The incident affected her personal phone, not her government phone, the report said.
The Journal reported that in recent weeks, senators, governors, top U.S. business executives and other figures received messages and calls from a person who claimed to be Wiles, citing the people familiar with the messages.
The White House and FBI did not immediately respond to requests for comment.
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