Advanced Hacking or No Sleep

Been up a lot lately and admittedly need some sleep. But I got a legit looking eMail from Arena.Net saying my account eMail address had been changed yesterday. Tried logging in at their main site and sure enough got a name/password error.

Now strangely enough I was able to log in over at the GuildWars 2 site. Changed my password there without any errors coming up. But then tried to log into the forums and got this....

So yeah. There's some hacking or anger going on somewhere between NCSoft and GuildWars. Glad I'm not playing at the moment, heh! Would still like to know my account is safe...