Ragnarok Online Hacked, User Data Leaked

The popular PC MMORPG Ragnarok Online was hacked recently, causing private user information to leak to the public. In this article from GameSpot they say that unlike the client side hacking of ShadowBane this hack was serverside with users ID's and passwords put out to the public on many public filesharing networks. The game's producer Gravity has refused to comment on the issue and/or say if anyone's personal info such as credit card numbers had been compromised.