confidentiality vs privacy

confidentiality and privacy both are nouns.

Word	Noun	Adjective	Verb	Adverb
confidentiality	Yes	No	No	No
privacy	Yes	No	No	No

As nouns, privacy is a hypernym of confidentiality; that is, privacy is a word with a broader meaning than confidentiality:

Other hypernyms of confidentiality include concealment, privateness, secrecy.

confidentiality (noun)	privacy (noun)
discretion in keeping secret information	the quality of being secluded from the presence or view of others
the state of being secret	the condition of being concealed or hidden