It certainly could be, especially if you’re not doing anything wrong. But if a government pries that much, you’d maybe be painting a target on your back by inventing a new language. You could also use an existing language that is hard to translate and learn, and isn’t well known. Like Ithkuil
Wellllllll, maybe. Whitened sugar is processed with bone char, and given how white the stuf is, there’s a good chance that it’s also processed that way.