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.
There is a portion of config-sample.php that is headed'Authentication Unique Keys.' Four explanations that appear inside the block will be found by you. There is a hyperlink fix hacked wordpress within that section of code.You change, copy the contents which you return, and have to enter that link into your browser. That makes it harder for attackers to generate a'logged-in' dessert Full Report for your site.
Backup plug-ins is also important. You need to backup all the files and database you other can bring your site back like nothing happened.
It's a WordPress plugin. They are drop dead simple to set up, have all the features you need for a task such as this, and are relatively cheap, especially when compared to having to hire someone to have this done for you.
Install the WordPress Firewall Plugin. Prevent and this plugin investigates web requests with WordPress-specific heuristics that are simple to recognize attacks.
Do your homework and some hunting, but if you're pressed for time and need to click this get this try out the WordPress security plugin that I use. It's a relief to know that my site (and business!) are secure.