The British cyber-security researcher who was praised for stalling the worldwide WannaCry cyber-attack has been arrested in Las Vegas.
Marcus Hutchins, 23, has been accused of involvement with Kronos – a separate piece of malware used to steal banking logins from victims’ computers.
Fellow cyber-security researchers have expressed surprise at the indictment.
The UK’s National Cyber Security Centre has said that it is aware of the situation.
WannaCry spread rapidly through computer systems around the world, in an unprecedented outbreak that began on 12 May.
Shortly afterwards, Mr Hutchins was thrust into the limelight after he found a way to stop it from spreading.
He had been in Las Vegas attending the Black Hat and Def Con cyber-security conferences, but activity on his Twitter feed – usually highly active – ceased a day ago.
“Marcus Hutchins… a citizen and resident of the United Kingdom, was arrested in the United States on 2 August, 2017, in Las Vegas, …