Go to the site!! There have been many accounts that got hacked. I warned you not to trust that site..
Go now and get your money out!
Huuuuurrrr durrrrrr.
A database had been stolen from an unknown source. Usernames and passwords from the unknown site/source have been run against mcxNOW (and probably many other sites) looking for foolish users who have used the same usernames and passwords on multiple websites.
If you are foolish enough to be one of these people you should immediately change your passwords and look into enabling 2 factor authentication (and perhaps a review of the way your use and store passwords in general...).
If you are a mcxNOW user you should go to your account page and check your security center box for failed login attempts that have occurred recently and report them to realsolid ASAP.
Keep calm and carry on.
And trading is already resumed. GEEZ.