The problem with ‘privacy’ is that no one can settle on a universal definition; perhaps because everyone is chasing the wrong kind of definition?
The problem for privacy is that so many are trying to find a way to engineer it out of their equations. Trying to define privacy either to constrain it, or to write it off entirely. It is treated like an unwelcome guest, or a bothersome interloper, or worse – an impediment to ‘progress’ or ‘innovation’, where personal profit is substituted for everything else.
In contrast ‘security’, is generally understood to be a good thing, or at least necessary.
Privacy often cast as – treated as – an impediment to security: “you’re hiding something you don’t want me to see” or “if I can’t see what you’re doing, I can’t see what ‘the bad guys’ are doing”. (“please make my job ‘easier’, i don’t care about you anyway”)
Privacy is a social experience. Wishing it away doesn’t work. Designing social tools that exclude or constrain it might.