If you'd like to keep some content hidden from the public eye, you can enable password protection for a given folder - either the main Internet site folder or any other one below it. Whenever this option is turned on, a pop-up will appear each time somebody attempts to open the folder in question or clicks on a direct link which goes a few levels deeper, so login info shall be required for www.domain.com/folder/image.jpg when you have protected the domain.com folder. When the details aren't valid, a “403 Forbidden” message will appear and there isn't any method of getting around this restriction, so you can be sure that no one will be able to access the secured content. The feature may be beneficial in a number of cases - if only certain individuals must be able to see particular files, if you are creating a website and you don't want people to see it before it is completed, and so on.