Change the last digits of h5P embed id in WordPress
I am looking for a way to change the last digits of h5P embed id that is generated automatically in the Wordpress environment upon content creation. Currently the id's follow a set sequence 1,2,3,4,...etc. which makes it easier for the students to guess the other content from source links in iframe. I am giving a sample embed code that is generated in wordpress. Can we change the bold number 1 to something else?
<iframe src="https://www.example.com/.........?action=h5p_embed&id=1" width="631" height="416" frameborder="0" allowfullscreen="allowfullscreen" title="Example Content"></iframe>
How can we do it? Is there a way to ensure this protection?