Cloning your site is another level in rename your login url to secure your wordpress website that can be useful. Cloning simply means that you've backed up your website to a completely different place, (offline, as in a folder, so as to not have SEO problems) where you can get it at a moment's notice if the need arises.
Truth is, if your own website is targeted by a master of this script, there is no way to stop an intrusion. What you are about to read below are a few actions you can take to quickly minimize the threat. Odds are a hacker would prefer picking more easy victim, another if your WordPress site is well protected.
You first must create a new user with administrator rights before you can delete the default admin account. To do this go to your WordPress Dashboard and click on User -> Create New User. Enter all of the information you will need to enter.
You can extend the plugin features with premium plugins like: Amazon S3 plugin, Members only plugin, DropShop etc.. So I think this plugin is a fantastic choice and you can use it.
But realize company website that online security is. Don't just be the type that is reactive, take action to start today, protecting yourself. Do not let Joe the Hacker make your life miserable and turn everything that you've worked hard in creating come crashing down in a matter of moments.