"We found out that somebody used a weakness in the game client to perform changes on the database."
They put up an announcement about it. Sounds like a sneaky hacker to me, I was paraphrasing.
I've been trying to connect to IRC using the Java client, and it hasn't worked. Suppose if it's possible to use mIRC or something to connect I could try that...
I read the New & Announcements shortly after I posted. Whoops, sorry. Unfortunately I am too lazy to download an irc client but I am sure you found the root of the problem by now.