This is a nice plugin with a little and quite annoying bug. It keeps warning me that my backup folder might be visible and that I need to move the .htaccess file.
Problem is (most probably) that the plugin is looking in a hardcoded wp-content folder while I moved my folder to another location using the available options in wp-config to use another folder than wp-content.
Since the name of wp-content is configurable, I think it should not be hardcoded in the plugin. It's rather annoying to have this warning in my face all the time while I have set up my security pretty well.