Media Vault is a powerful WordPress plugin designed to secure attachment files within your uploads folder. It offers a customizable set of permission checks to protect files, ensuring that only authorized users can access them. After activation, users can easily manage file protection through the Media Uploader, Media Vault metabox, or bulk actions in the Media Library. The plugin's default setting requires users to be logged in, but administrators can modify these permissions through the settings menu or individually for each attachment. Additionally, custom permission checks can be implemented using the mgjp_mv_add_permission() function.

The plugin facilitates the creation of secure download links, ensuring compatibility across various browsers while maintaining file security. Users can generate download links using a simple shortcode, allowing for easy integration into posts or pages. Media Vault is compatible with WordPress 3.8 and above, and it now supports WordPress MultiSite, making it a versatile choice for users looking to enhance their site's media security.