I am too tired to write commentary, so consider this a public service. If you have an NCSoft Master Account for Aion, City of Heroes/Villains, Lineage 1/2, etc. or you were dumb enough (like I was) to link your Guild Wars account(s) to the NCSoft Master Account (for silly things like another Storage Pane), then I suggest you read this thread.
The tl;dr version is that security holes existed in the NCSoft Master Account page, according to fans, that allowed people to randomly access other people’s accounts by merely signing in to their own accounts. Then you could do fun things like change game account passwords without needing old game account passwords or jot down personal information. The powers that be are working hard this weekend to fix or ameliorate security and information issues.
The most pertinent posts are: The OP. The Aion fan who knows things. ArenaNet’s Community Manager response. ArenaNet’s Support Liaison response. Holiday Hacker’s guide to the NCSoft page. ArenaNet’s Community Manager response in lieu of the support response.
Good luck to all those that were hacked, and thank you to all the people working this weekend to deal with the issues. It wouldn’t be even half as bad if there was a way to recover deleted Guild Wars characters, which is something that should be fixed in Guild Wars 2. But, still a good quick New Year’s resolution is to change your passwords for the precious pixels we pretend to own.
a crescendo, annie