If you believe your web site has been hacked. Please open a support ticket immediately. Someone from our security team will temporarily disable the site and investigate the problem. In most cases, we are able to recover your site from a known-good backup prior the break in. Afterwards, we typically upgrade any software you're running on your web site that may be out-of-date.
Most web site hacks are the result of out-of-date software running on your web site. As a prevention, we always recommend that you keep the software running on your site, like WordPress or Joomla, and any other modules or themes, up-to-date.