Since scare tactics appear to be what drives some people to take fix hacked wordpress site a little more seriously, or at least start thinking about the issue, let me shoot a few scare tactics your way.
There are numerous go to this website ways to pull off this, and a lot involve re-establishing much more and databases and FTPing files, exporting and copying. Some of these are very complicated, so it is important that you go for the one that is right. Then you might want to check into using a plugin for WordPress backups if you are not of the persuasion.
I don't think there is a person out there that after learning just how much of a problem WordPress hacking is that it is a good idea. Something I've noticed over the years is that when it comes to securing their sites, bloggers seem to be stuck in this state.
Now we are getting into matters. Whenever you install WordPress, you need to edit the file config-sample.php and rename it to config.php. You want to set up the database information there.
Change your password, often, or at least admin username and your WordPress password and collect and utilize fantastic WordPress security tips to keep hackers out!