Read the news on the main page of the site:
http://www.eqemulator.net/
Passwords were compromised if you have logged into the forums in the past 2 months. If you haven't been here in years, then there is no reason to be concerned. Otherwise, if you have logged in recently, you definitely want to change your password. Due the the hacker attaining many passwords, all passwords have been forcefully reset by the admins here.