Jake Davis, 20, from Lerwick, Shetland, was among four members of a group of young British hackers jailed for masterminding the cyber raids from their bedrooms.
Davis, Ryan Ackroyd, Mustafa al-Bassam and Ryan Cleary considered themselves to be “latter-day pirates” targeting major global institutions including the CIA, Sony, the FBI and Nintendo.
They were “hactivists” with the LulzSec collective and were behind attacks that stole sensitive personal data including e-mails, online passwords and credit card details belonging to millions of people.
News International, the NHS and the UK’s Serious Organised Crime Agency (Soca) were also victims of the group, who lived as far apart as London and the Shetland Islands and never met in person.
Sentencing them at Southwark Crown Court in London yesterday, Judge Deborah Taylor said some of the taunting of their victims “makes chilling reading”.
What they considered a cyber game, she said, had in fact had real consequences.
“You cared nothing for the privacy of others but did everything you could through your computer activities to hide your own identities while seeking publicity,” she said.
Stolen information was posted unencrypted on their website and file-sharing sites like Pirate Bay in 2011, the court had previously heard.
They also carried out distributed denial of service (DDoS) attacks, using linked networks of up to one million computers to overpower and crash websites.
Their activity collectively cost their targets millions of dollars and potentially left millions of people at risk from criminals.
All had admitted offences under the Computer Misuse Act 1990.
Cleary, 21, of Wickford Essex, known as ViraL, pleaded guilty to six charges including hacking into US air force agency computers at the Pentagon.
He was jailed for two years and eight months.
Ex-soldier Ackroyd, 26, from Mexborough, South Yorkshire, was jailed for 30 months having previously pleaded guilty to one charge of carrying out an unauthorised act to impair the operation of a computer.
The Iraq veteran used the online persona of a 16-year-old girl called Kayla.
Al-Bassam, 18, from Peckham, south London, used the alias tFlow. He was at school at the time and is currently sitting his A-levels, the court heard.
He was given a sentence of 20 months suspended for two years, plus 300 hours of community work.
Davis used the alias Topiary and was LulzSec’s main publicist. He was ordered to serve 24 months in a young offenders’ unit.
He and al-Bassam had previously pleaded guilty to hacking and launching cyber attacks on a range of organisations, including the CIA and Soca.
Detective Superintendent Charlie McMurdie, head of the Police Central E-Crime Unit, said the group were “the worst sort of vandals”. Speaking outside court she said they were told about the group by the FBI.
When they raided Cleary’s home, he was in the middle of attacking a website, she said.
She said LulzSec had been “running riot causing significant harm to businesses and people”.
“Theirs was an unusual campaign in that it was more about promoting their own criminal behaviour than any form of criminal financial profit,” said Det Supt McMurdie.