Seriously...The Onion got hacked...The Onion...seriously...explains how it was done...seriously
QUOTE from link above:
.........At this point the editorial staff began publishing articles inspired by the attack. The second article, Syrian Electronic Army Has A Little Fun Before Inevitable Upcoming Deaths At Hands Of Rebels, angered the attacker who then began posting editorial emails on their Twitter account. Once we discovered this, we decided that we could not know for sure which accounts had been compromised and forced a password reset on every staff member’s Google Apps account.
In total, the attacker compromised at least 5 accounts. The attacker logged in to compromised accounts from 184.108.40.206 which is also where the SEA hosts a website.Don’t let this happen to you
Under the above heading are some suggestions to avoid this type of attack...