Jail term definitely looks small in comparison to several life sentences that Ross got for far less of an impact to big corporations and could of cost them billions in damage control to their reputations if this kid-hacker got away and did it again.
Check out the thread above quoted about this twitter hacker who could of kept on scamming people on and on causing havok to Jack Dorsey's media platform on how they handle it's security procedures alone.
One word for another to take this one's place in the future:
Exploit.