Hide youtube logo in courspress

in courspress you can set youtube videos not to display related videos. But to prevent videos to be seen on youtube it is also important to hide the youtube logo at the bottom right. We need an update and a checkbox so the logo is hidden.
Dou you have an idea how to do this?

I like to use youtube or vimeo to save my videos because my server can not handle tons of videos. But it would be bad if users check the source of the video and will mail all friends the course video which is one of my main features.

Thanks for advice.
kind Regards R.