Since scare tactics seem to be what compels some people to take fix hacked wordpress site a bit more seriously, or at the very least start considering the problem, let me shoot a scare tactics your way.
You can look for software that will backup your database and files. You can restore your website by means of your backup files and change everything that has to be changed, visit the site if hackers abruptly hack your website.
Keeping your WordPress website up-to-date is one of the simplest things you can do. For the last few versions, WordPress has included the ability to install updates. A new update becomes available.
In addition to adding a secret key to your wp-config.php document, also consider altering your user password into something that is strong and unique. WordPress will let you know the strength of your password, but include numbers, use letters, and a good tip is to avoid phrases. It's also a good idea to change your password frequently - say once every six months.
The plugin should be updated play nice with all of your other plugins to stay current with the latest WordPress release and have WordPress cloning and restore capabilities. The ability to clone your website (along with regular copies ) can be helpful if you ever want to do an offline site redesign, among other things.