UPDATED: British cyber security researcher charged with creating banking malware

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The FBI have today arrested and now charged a cyber security researcher who was credited with​ helping fix the global WannaCry ransomware attack which had a massive impact on the NHS.

The FBI detained Marcus Hutchins on Wednesday in Nevada, He was arrested as thousands of hackers descended on Las Vegas for the annual Black Hat and Def con security conferences.

Marcus has now been charged with creating banking malware.

Marcus who is based in England and is a malware researcher gain national media attention and is credited for detecting the “Kill Switch” which brought an end to the WannaCry worm in May.

The attack forced a number of NHS hospitals to close after being hit by the cyber attack which causes​ huge delays within hospital wards.

The attack struck the NHS and infected hundreds of thousands of computers worldwide, causing disruption at car factories, hospitals, shops and schools in more than 150 countries.

The software, called WannaCry or Wanna Decryptor, exploited a vulnerability in the Windows operating system.

WannaCry allowed malware to automatically spread across networks, so it can quickly infect large numbers of machines at the same organisation.