Zain Qaiser, from Barking in London, scammed millions of pounds out of website visitors and is off to jail. He may be the world's most prolific ransomware distributor, reports the BBC, exposed in a trial that focused on easy-to-blackmail porn site visitors.

Qaiser, 24, was jailed for more than six years at Kingston Crown Court. The court heard he is the most prolific cyber criminal to be sentenced in the UK. Judge Timothy Lamb QC said: "The harm caused by your offending was extensive – so extensive that there does not appear to be a reported case involving anything comparable." …

Qaiser was first arrested almost five years ago – but the case has been delayed because of the complexity of the investigation and mental health concerns. Initially working from his bedroom at his family home in Barking, Qaiser began to make money through "ransomware" attacks when he was only 17 years old.