Install the fix wordpress malware scanner Firewall Plugin. This plugin investigates net requests with simple WordPress-particular heuristics to identify and quit most obvious attacks.
An easy way to maintain WordPress safe i loved this would be to use a few tools that are built-in. First of all, don't allow people run a web host security scan, to list the files in your folders and automatically backup your web hosting account.
Is to delete the default administrator click over here account. This is critical because if you don't do it, malicious user know a user name that they could attempt to crack.
You may extend the plugin features with premium plugins such as: Amazon S3 plugin, Members only plugin, DropShop etc.. I think this plugin is a good option and you can use it at no cost.
Implementing all the above will probably take less than an hour to finish, while creating your WordPress site more immune to intrusions. Over 1 million WordPress websites were cracked this past year, mainly due to preventable safety gaps. Have yourself prepared and you're likely to be on the safe side.