Documents can easily get lost if you do not have good protection on your website. Some of those files might be stored in your computer and easily replaceable, but what about the rest of them? If you lose them the first time, where are you going to get them from again? For sites that have been in operation for a very long time, rename your login url to secure your wordpress website is very important. Often sites have a lot of data and have created a large number of files. Recreating all of that would be a nightmare, and not something any business owner wants to do.
Truth is, there is really no way to prevent an intrusion if your own site is targeted by a capable master of the script. What you are about to read below are some precautionary measures you can take to quickly minimize the risk to an acceptable degree. Chances are a hacker would prefer choosing simpler victim, another, if your WordPress site is protected.
Exclude pages - This plugin adds a checkbox,"include this page in menus", which is checked by default. If you uncheck it, the page won't appear in any listings of pages (which includes, and is usually limited to, your page navigation menus).
As I (our untrue Joe the Hacker) understand, people have way too many usernames and passwords to remember. You have got Twitter, Facebook, your online banking, LinkedIn, two site logins, visit this site right here FTP, web hosting, etc. accounts which all include logins and passwords you will need to remember.
Don't use wp_. Most web hosting providers are currently removing that default but if yours doesn't, fix wp_ to anything else wikipedia reference but that.