I have had two WordPress blogs hacked into previously. That was at a time when I was doing almost no internet advertising, and until I found time to deal with the situation (weeks later), these sites were penalized in the main search engines. They weren't eliminated, however the ratings were reduced.
Finally, clean hacked wordpress site will tell you that there is not any htaccess in the directory. You may put a.htaccess file into this directory if you desire, and you can use it to control access to the wp-admin directory or address range. Details of how to do this are readily available on the internet.
You can search for software that will backup your database and files. If hackers suddenly hack your site, you can restore your website with the use of your backup files and change.
1 step you can take is to delete the default administrator account. This is critical because if you do not do it, malicious user already know a user name which they could try to crack.
You can also make a firewall that blocks hackers. The hacker is prevented by the firewall from coming into your files. hop over to here You also have to have version of Apache. Upgrade your PHP also. It is important that your system is full of upgrades.
Software: If you have installed free scripts such as Wordpress, search Google for'wordpress visit this website security'. You will get tips.