Security around plugin

The plugin works great and I am looking at publishing a 3d model on my site.

However, I have some security concerns. If I inspect the plugin, I can access the glb file link which anyone can download from our wp-content folder.

I need a way to secure the model so that it is not downloadable.

I have looked at plugins that change the name of wp-content but this change is reflected in the glb file link.

What is the best way to go about this?? Thank you.