Privacy is the ability of an individual or group to seclude themselves or information about themselves, and thereby express themselves selectively.
Banksy's One Nation Under CCTV graffiti, adjacent to an actual CCTV camera
Advertisement with a highlighted quote "my face got redder and redder!" There is a highlighted quote on the importance of being honest with oneself, and after two and a half pages concludes with a suspicion that telephone operators are listening in on every call.
Security is protection from, or resilience against, potential harm. Beneficiaries of security may be persons and social groups, objects and institutions, ecosystems, or any other entity or phenomenon
Privacy
…group to seclude themselves or information about themselves, and thereby express themselves selectively. The domain of privacy partially overlaps with security, which can include the concepts of appropriate use and protection of information. Privacy may also take the form of bodily integrity. Throughout history…
Refugees fleeing war and insecurity in Iraq and Syria arrive at Lesbos Island, supported by Spanish volunteers, 2015
Security checkpoint at the entrance to the Delta Air Lines corporate headquarters in Atlanta
X-ray machines and metal detectors are used to control what is allowed to pass through an airport security perimeter.
Security checkpoint at the entrance to a shopping mall in Jakarta, Indonesia