Our K-12 school is looking for a good way to prevent students and parents from downloading proprietary videos and recordings of online classes. So far, we have been recording them through a variety of means and uploading them straight to Canvas, but it's very easy to download the videos from the content editor and Files area. 

Are there any other services or tips for preventing the videos from being downloaded? 

I realize that, if someone is serious about saving videos, there are ways to get around any security measures we take (screen recordings, using a phone's camera, etc.), but the administration would like to take whatever steps we can take to protect content. 

Thanks for any help you can provide!