Update 2: They are back down again this time the down for maintenance due to DDOS page no longer has shady links and they state they are moving servers.
Update 1: I have received word that they are back online and have gotten reports of some users able to withdraw funds. I still have not finished investigation as to the details of the phishing twitter links.
I will make this quick because got drama going on right now but I wanted to pass the word on....I do no know if the wallets were stolen or just the domain.... But Mercatox website has been hacked...... it is even sending a link to a fake twitter website wanting you to login. Do not be tricked