Moving wp-content outside of web root?

Is it possible to move the entire wp-content folder outside of the Web root? I need to prevent anyone to view any asset file (images, pdfs, movies etc) with a direct url to the file…
Any ideas? Or could I do this safely with htaccess?

See Ben Word – How to Hide WordPress

Summary:

In the Roots Theme we’re taking several steps to help make it not so
obvious that you’re using WordPress:

1. Cleaning up the output of wp_head and removing the generator from RSS feeds
2. Hiding /wp-content/ by rewriting static theme assets (CSS, JS, and images), rewriting the plugins directory, and also changing the
   location of WordPress uploads
3. Cleaning up the output of navigation menus with a custom walker
4. Bonus: root relative URLs