By default, the newest version of WordPress is pretty darn secure. Anything that might have been added to any fix malware problems free plugins has been considered by the development team of WordPress . Before, WordPress did have holes but most of them are filled up.
This is great news as it means that there is a community of users and developers who can further improve the platform. Whenever there's a group there will always be people who will check here attempt to take down them.
It's a WordPress plugin. They're drop dead simple to install, have all the features you need for a job like this, and are relatively cheap, especially when compared to having to hire someone to have this done for you.
You can make a firewall that blocks hackers from infiltrating your own blogs. From coming to your files, the hacker is prevented by the firewall. You must also have updated version of Apache. Upgrade your PHP as well. It is essential that your system is filled with upgrades.
Bear in mind the security of your blogs depend on how you manage them. Make certain that you follow these basic click this tips to avoid exploits and other hacks on your own blogs and sites.