Here is what 000webhost is saying for the security breach issue they are having:
We have witnessed a database breach on our main server. A hacker used an exploit in old PHP version of the website gaining access to our systems.
We became aware of this issue on the 27th of October and since then our team started to troubleshoot and resolve this issue immediately. We will get back to providing the service to our users soon.
In an effort to protect our users we have temporarily blocked all access to systems affected by this security flaw. We will re-enable access to affected systems after an investigation and once all security issues have been resolved. We advise our customers to change their passwords and use different passwords for other services.
--------------------------------------------------------------------------------------------------------------------------
Chris