If you would like to be a little more secure... it would be a good idea to lock your doc folder so that no one can access it or just remove it all together. The reason for this is that people can very easily find the version you are using and then try to use the right exploit for your site. Below is the .htaccess file I use...
*This post was also under the Hacking section but I was asked by a number of people to post it here so they could reply and download the file



