#4 - July 8, 2010, 9:50 a.m.
If WE every message you ingame or send you an ingame email it WILL have a blue Blizzard logo next to our name, or on the email.
Anything else is an attempt to scam you out of your account, please right-click that player's name and report spam immediately so it gets tended to as quickly as possible.
If you actually WENT to the website they asked you to, please, immediately scan your system for malware and then change your password - in that order.
Thanks!