Seth Nolan-Mcdonagh was just 13 when he joined a web link of online hackers.
This made them crash or stop working.
The attack on this anti-junk mail slowed the internet around the world.
Spamhaus called on anti-DDoS specialist Cloudflare for support which then led to further and heavier attacks.
This was later described as the largest known DDOS surprise attack by hackers at the time.
The court heard the effect on the internet had been substantial.
The court said after his arrest in April 2013 more than 72,000 had been discovered in Mcdonaghs bank account.
I emphasise at the very outset two matters in particular in respect of your culpability.
He said there was almost no risk of further harm or re-offending.
source: www.techworm.net