I don't care about what you do in the 'privacy' of your own home. [=I don't care what you do when you are at home by yourself or with your family]
She felt that the guard's request to search her was an 'invasion of (her) privacy'. [=she felt the search did not respect her privacy]
Celebrities have a right to 'privacy'.
(..) - Come on,Jiminy. - All right. Soon as l take on some ballast. One side, sister. Well, so long. Hmm, put it in the wrong end. Hmph, no more privacy than a goldfish. Ooh, chilly. Father! Father! Hey, Pinoke, wait for me! Father! (..)1940 Pinocchio