This free AddOn provides a deployable code example to prevent others from embedding (or hotlinking) your SWF on other websites. It is one of the available measures for protecting your content.
The SWF Hotlinking Protection AddOn prevents an others from being able to embed your video or video player on a different site. This AddOn controls the HTML container only.
Hotlinking: Hotlinking is another word for embedding. An end-user can can look at the source code of your HTML page, copy the embed, object, img or swfobject tags, and place that copied code into the HTML of their webpage.
The SWF Hotlinking Protection AddOn denies others from being able to copy the code onto their site.