LulzSec hacker Ryan Ackroyd has pleaded guilty to contributing to attacks made on Sony and Nintendo websites in 2011. The 26-year-old will be sentenced along with three other guilty parties on May 14.

Bloomberg reports that Ackroyd will receive his sentence along with fellow LulzSec hackers Jake Davis, Mustafa Al-Bassam and Ryan Cleary.

The attacks took place between February and September 2011 and include disruption of sites owned by Sony, Nintendo, the NHS and 20th Century Fox.

Back in January Sony Europe was fined £250,000 for failing to prevent the 2011 attack. Read our full report here.

Thanks GI.biz.