I back up my blogs using a plugin WP DB Backup. If anything happens I will always restore my blog to the settings. I use my site to be scanned by WP Security Scan plugin that is free and asks that are suspicious-looking to be blocked by WordPress Firewall to fix wordpress malware fix.
Protect your login credentials - Do not keep your login credentials where a hacker might find them. Store them offsite, and even offline. Roboform is very good for protecting them. Food for thought!
Move your wp-config.php file one directory up from the WordPress root. WordPress will search for it if it cannot be found in the root directory. Additionally, nobody will have the ability to read the file unless they've FTP or SSH access to your server.
You can get an SSL Encyption Security for your WordPress blogs. The SSL Security makes encrypted and secure communications with your blog. So that all i loved this transactions are recorded, you may keep history of communication and the all the cookies. Make sure that all your official website sites get SSL security for maximum protection from hackers.
Whenever your site is new, you do consider needing security but you do have to protect yourself and your investment. Having a site go down and not being able to restore it quickly can mean a big loss of customers who can't find you and probably won't remember to look for your site later. Do not let this happen to you. Back your site up as soon as you get it started, as the website is operational, and schedule backups for as long. That way, you'll have WordPress security and peace of mind.