Cloning your site is just another level in fix wordpress malware protection which may be useful. Cloning simply means that you have backed up your site to a totally different location, (offline, as in a folder, in order not to have SEO issues ) where you can access it at a moment's notice if necessary.
No software system is immune to bugs and vulnerabilities. Security holes will be discovered and bad guys will do their best to exploit them. Keeping your software up-to-date is a good way to stave off attacks, once security holes are found because their products will be fixed by reliable software vendors.
What is? Out of all of the choices you can make, which one should you choose and which one is ideal for you specifically at the moment?
You could get an SSL Encyption Security for your WordPress blogs. The SSL Security makes secure and encrypted communications with your site. You may also keep the all the cookies and history of communication so that all transactions are listed. Be certain all your sites get SSL security for protection from hackers.
Do your homework and some hunting, but if you're pressed for time and check my blog want to get this try out the WordPress security plugin that I use. It's a relief to know that my website (and company!) are secure.