I have had two WordPress blogs hacked into in the past. That was at a time when I was doing very little internet marketing, and until I found time to address the situation (months later), these sites were penalised in the search engines. They were not removed, but the rankings were reduced.
In my opinion, the best way to make sure your that is fix hacked wordpress is via using a WordPress backup plugin. This is a fairly inexpensive, elegant and easy to use way to be certain that your website is accessible to you in the event of a disaster.
If you're among the ones, I might find it somewhat harder to crack your password. But check my source if you're one of the ones that are responsive, I might get you.
Should you ever wish to migrate your website elsewhere, like a new web host, you'd be able to pull this off without a hitch, and also without needing to disturb your old site until the new one was set up and ready to roll.
Install the WordPress Firewall Plugin. Stop and this plugin investigates web requests to recognize attacks.
Implementing all the above will take less than an hour to finish, while making your WordPress site see page more immune to intrusions. Websites were cracked this past year, mainly due to preventable security gaps. Have yourself prepared and you are likely to be on the safe side.