I have had two WordPress blogs hacked into previously. That was in a time when I was doing almost no internet marketing, and until I found time to deal with the situation (weeks later), these sites were penalized at the main search engines. They weren't eliminated the ratings were reduced.
Since scare tactics appear to be at the very least start thinking about the issue, or what drives some people to take fix malware problem a little more seriously, allow me to shoot a couple of scare tactics your way.
There are many ways to pull this off, and many involve re-establishing more and databases and FTPing files, exporting and copying. Some of them are very complicated, so it is imperative that you go for the one that is this link best. Then you might want to look into using a plugin for WordPress backups if you are not of the persuasion.
So what is? Out of all of the options you can click here for info make, which one should you choose and which one is ideal for you right?
In addition to adding a secret key to your wp-config.php document, also consider changing your user password into something that's strong and unique. A good tip is to avoid phrases, use letters, and include numbers, although wordPress will tell you the strength of your password. It's also a good idea to change your password frequently - say once More hints every six months.
Do your homework and some searching, but if you are pressed for time and want to get this try the WordPress security plugin that I use. It is a relief to know that my website (and company!) are secure.