I love how "innocent" it was... At least a first glance... Who knows everything they did. But the hosts took it well! And I get the feeling the hacker just wanted a little air time.
Ahhh, from the wiki:
"Visiting computer guests, who were in the green room, overheard this information and immediately telephoned a friendly hacker, who proceeded to use the information to get into the account."
Just some innocent fun! Love it!