The Geek’s Guide to WordPress Security
The sad truth is that the vast majority of security issues on a WordPress site are caused by human error, usually either using the wrong settings or failing to maintain the system correctly.
But the upside of that is that you can fix those errors once you know what to do. If you’re a web developer or programmer, you’ll appreciate this set of advanced WordPress security tips to lock the site down tight.
Full article: The Geek’s Guide to WordPress Security