I've had two WordPress blogs. That was at a time when I was doing almost no internet marketing, and until I found time to handle the situation (weeks later), these sites were penalized in the main search engines. They were not eliminated, however the ratings were reduced.
Installing the secure your wordpress website Scan plugin will check all this for you, and alert you that you might have missed. Additionally, it will inform you that a user named"admin" exists. That is the user name. You can follow a link and find directions if you desire. I personally believe that a strong password is protection that is good, and there have been no successful attacks on the sites that I run because I followed these steps.
A simple way would be to use a few tools. To begin with, don't allow people run a web host security scan to list the documents in your folders and automatically backup your web hosting account.
Maintain control of your assets - Nothing is worse than getting your livelihood in someone else's hands. Why take chances with something as important as your site?
You could even get an SSL Encyption Security to your WordPress blogs. The SSL Security makes encrypted and secure communications with your site. You may keep the all of the cookies and history of communication so that all transactions are listed. Make sure navigate to these guys that all your sites page get SSL security for maximum protection from hackers.
These are only a few of the things I do to protect my blogs. Thing is they don't require much time to perform. These are easy solutions, which can be done.