A fake Northern Ireland secretary email which prompted a Twitter exchange with Elon Musk appears to have been issued due to an "archaic" government communications system, a cyber security expert has said.
Secretary of State Chris Heaton-Harris had to deny he had resigned after a sham statement was emailed to the press on the Northern Ireland Office (NIO) circulation list.
He dismissed the email as "complete and utter tosh" before challenging Twitter's new chief executive to "eliminate fake news".
