Just like today's "don't spread personal data on the internet and avoid forms", the future of that will be "don't use a brain-computer device/software that is n

Just like today's "don't spread personal data on the internet and avoid forms", the future of that will be "don't use a brain-computer device/software that is not entirely open-source". We're warned. Now what we have to do is to work on reducing the power of malicious individuals who would want to read our thoughts by force. That's a political/societal thing more than technical. Or is it? what if it was financially not worth it for anyone to do such things...