With Aion's recent huge (and sometimes hilarious) push to ban gold sellers, the RMT traders are looking for new ways to make a (dis)honest living. And they're starting with some pretty official-looking phishing attempts in-game. Aion Support Tweeted a warning a while back, and Andrew "Tamat" Beegle echoed the sentiment last night, pointing back to the security warnings on the main site.
Unfortunately, gold sellers are persistent. And while it's a relief not to have them hanging around in game anymore, they didn't decide to step away from their computers and find a different way to make a living, they just changed tactics. So let's be careful out there.