I back my blogs frequently using a plugin WP DB Backup up. If anything happens I can restore my website to the last settings. I use my site to be scanned by WP Security Scan plugin that is free and WordPress Firewall to block asks that are suspicious-looking to fix wordpress malware cleanup.
There are ways to pull off this, and a lot involve copying and FTPing files, exporting and re-establishing much more and databases. Some of them are very complicated, so it's imperative that you go for the one that is best. If you're not of the technical persuasion, then you might want to look into using a plugin for WordPress backups.
A snap to move - If, for some reason, you need to relocate your site, such as a domain name change or a new hosting company, having your files at your fingertips can save you oodles of time, headache, and the demand for tech help.
Pathological-looking phrases that were whitelists and black based on which area they look within. (unknown/numeric parameters vs. known article bodies, comment bodies, etc.).
There is another problem you have with WordPress. People know where they can login and they could visit with your login form and try a different combination of passwords and this website user accounts outside. In order to prevent this from happening you need to install Login Lockdown. It's a plugin that lets users attempt to login with a wrong password three times. After that the IP address will be banned from the server for a specific amount of time.