I back my blogs frequently using a free plugin WP DB Backup up. I will always restore my website to the last 13, if anything happens. I use my site to be scanned by WP Security Scan free plugin regularly and WordPress Firewall to block requests to clean hacked wordpress site.
A simple way to maintain WordPress safe would be to use a few tools that are built-in. First of all, don't allow people to list the files in your folders, run a web host security scan and automatically backup your web hosting account.
It represents a essential task while it's an odd term : making a WordPress backup of your site to work on offline, or in the event see this website something should go amiss. We are not only being obsessive-compulsive here: servers go down every day, despite their promises of 99.9% uptime, and if you've had this happen to you, you understand the fear is it can cause.
You can extend the plugin features with premium plugins like: Amazon S3 plugin, Members only plugin, DropShop view website etc.. So I think this plugin is a good choice click reference and you can use it.
Do not use wp_ as a prefix for your own databases. That default is being eliminated by most web hosting providers but if yours doesn't, adjust wp_ to anything but that.