U.K. Prime Minister Andy Burnham exchanged messages earlier this year with an unknown individual pretending to be White House chief of staff Susie Wiles, a White House official confirmed on Monday.
The incident, first reported by Politico, comes a year after President Donald Trump’s administration launched an investigation into a hack targeting Wiles’ phone.
“We do not comment on national security matters,” Downing Street told NOTUS. One person briefed on the communications said a “few messages” were exchanged after Burnham assumed office but insisted they were “of no significance,” according to Politico.