I am still doing research on this and realized I had one major false assumption - that CC runs on MCU chip with no SE. Lol, the Mk4 has 2 of those 😅

I think I assumed it as I have heard CoinKite guys saying on podcasts that everything is open-source. SE’s can’t be due to NDA so I assumed they have only MCU.

At least I learnt a lot today.