Klaus Schwab, some moderately influential figurehead of a rich-people club that calls it self "world economic forum" gave an interview where he attacks not only the right to privacy but the right to person-hood all-together.
He's attacked the privacy for thoughts. Brain-privacy is the basis for people to become individuals.
I think violations of brain privacy is a crime that is so heinous that it requires punishment by death penalty. The stakes are so high that this is a reasonable measure. Lets put it this way brain privacy is the reason why humans and most animals evolved the capacity for conscious experience and a sense of self, yes even insects with only a few 100k brain-cells probably have it in a very limited capacity. On the species level it's a evolutionary adaptation of dealing with the separation of thoughts residing in distinct brain boxes. If you remove this separation by making brains loose their opacity, people's brains will most likely become unconscious neural clusters. It will probably be accompanied by severe mental atrophy, because all the brain muscles that used to be exercised for conscious thought would wither away.
You wouldn't make this up for a fictional villain because it's too comically evil, and yet here we are.
I don't know. maybe privacy has to be defined as informational opacity of people and their personal lives. Given that the anti-privacy-crime-cartel knows no bounds and wants to do away with privacy for your skull. We have to conclude that privacy can have no exceptions and may never be violated for any reason.