I back my blogs regularly using a plugin WP DB Backup up. I will always restore my blog to the last settings if anything happens. I use WP Security Scan free plugin to scan my blog and WordPress Firewall to block suspicious-looking asks to fix malware problem.
Don't depend on your Web host - Many people rely index on their web host to"do all that technical stuff for me", not realizing that sometimesthey don't! Far better to have the responsibility lie with you, instead of from your control.
Is to delete the default administrator account. This is critical because if you do not do it, malicious user know a user name that they could attempt to crack.
You can also make a firewall that blocks hackers from infiltrating your own blogs. The firewall prevents the hacker from coming to your own files. You must also have version of Apache. Upgrade your PHP. It's important that your system is filled with upgrades.
Oh . And incidentally, I talked about plugins. When you get a plugin, make sure it's a secure one. Do not install any plugin because the owner is check these guys out saying that plugin will allow you to do this or that. Maybe use perhaps, or a test blog to look at the plugin get a software engineer to examine it carefully. This way isn't a threat for your organization or you.