Preserve headers/logos underneath 125 pixels high. It takes up beneficial viewing space, primarily for laptop users, that is ideal left for the good stuff to appear"above the fold." Take a cue from the massive businesses, straightforward logos completed nicely say it all. This is our #1 pet peeve - screaming logos and headers!
The fix hacked wordpress database Codex has an outline of what permissions are acceptable. File and directory permissions can be changed either via an FTP client or within the page from the hosting company.
I protect an access to important files on the blog's server by placing an index.html file in the particular directory, that hides the files from public view.
For me it's a WordPress plugin. They are drop dead simple to set up, have all the functions you need for a task such as this, and are relatively inexpensive, especially when compared to having to employ someone to get this done for you.
Now we are getting into things. You have to rename it to config.php and modify the file config-sample.php, when you install WordPress. You need to deploy the database facts there.
Implementing all the above will take less than an hour to finish, while making your WordPress website more view it now immune to intrusions. Over 1 million WordPress websites were cracked last year, mainly due to easily preventable safety gaps. Have yourself prepared and you are likely to be on the safe side.