Group attacked several large companies in 2011 including Sony and Nintendo
Ryan Ackroyd will receive his sentence alongside fellow LulzSec hackers Jake Davis, Mustafa Al-Bassam, and Ryan Clark, according to Bloomberg.
LulzSec carried out attacks against a number of high profile websites between February and September 2011.
The attacks led to a tightening of security procedures at large corporations.
Sony Europe was fined £250,000 in January for failing to prevent the 2011 attack.