wtf!!! Do you use the same passwords on other sites or so? Normally they already need to know your password from coinmarket.io and your email password, so if those are already different then all the other passwords that you use, then you should be safe. This is really bad!!!! As 58000KDC will be worth a lot, fuck men. Contact coinmarket.io but i'm afraid that they will not be able to do anything about it, maybe it is a software bug and you're lucky and can be fixed.