The relevant video on poison pilling audio: https://youtu.be/xMYm2d9bmEA
For text, I suppose it’s similar to writring nonsense in background color instead of spaces or by using an invisible font. AI could probably figure it out and filter it.
The reason it works for music is that AI doesn’t really understand the “grammar” of music, so it just treats it like an image.
This question is really wide. You’ll have to narrow down what the challenge really is.
Start by doing a mind map on a piece of paper.
You’ll need one for the product, but you’ll also need one for the business.
Once our have the entire idea spread out like that, you can start researching the things you don’t know or contact people who do know those specifics.