The four were initially charged nearly a year ago. Davis, as leader, was sentenced with two years jailtime, while Cleary was sentenced to 32 months for producing malicious software, Ackroyd for 30 months for his role as press secretary of the group and Al Bassam, who posted the stolen data online, was given a 20-month suspended sentence.
"The harm they caused was foreseeable, extensive and intended," Andrew Hadik, lawyer for the Crown Prosecution Service told BBC. "Indeed, they boasted of how clever they were with a complete disregard for the impact their actions had on real people's lives. This case should serve as a warning to other cybercriminals that they are not invincible."
Lulzsec carried out many high-profile hacks in 2011, starting with the Sony Pictures hack that eventually led to a lengthy PSN outage. Lulzsec also attacked Nintendo, EVE Online, Minecraft, The Escapist and Battlefield Heroes before calling it quits.