actually i do not think that guy was hacked..

I think he just cannot login to CEX...

it happened to me yesterday.... when I try to login... it keeps telling me wrong username or password...

then I tried to reset my password...

and i provided my username/email and it gives me incorrect username/email... (which means my account does not exist)

I went ahead and submitted a ticket... and boom... support helped me fix my problem...

they did ask some security questions... to verify if I really own the account...

so yeah... I think it is their anti bruteforce attack measure that is acting a bit too much... and blocking legitimate users...

not really sure... i am just sharing my experience and thoughts...