Cloning your website is just another level in fix hacked wordpress database which can be very useful. Cloning simply means that you've backed up your site to a totally different location, (offline, as in a folder, so as not to have SEO problems) where you can get it at a moment's notice if the need arises.
Strong passwords - Do what you can to use a strong password, Go Here alpha-numeric. Easy to remember passwords are easy to guess!
First in line is currently creating a password for your account. Passwords must be made with special characters more info here and numbers. You may combine them and create small shifted letters. Smarter passwords can be your gateway to zero hackers. Make passwords that are difficult that only you can think of.
You can extend the plugin features with premium plugins like: Amazon S3 Web Site plugin, Members only plugin, DropShop etc.. So I think this plugin is a fantastic option and you can use it at no cost.
Change admin username and your WordPress password, or your password, often and collect and utilize other WordPress security tips to keep hackers out!