confidentiality vs prudence

confidentiality and prudence both are nouns.

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

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

Other hypernyms of confidentiality include circumspection, discreetness, discretion.

confidentiality (noun)	prudence (noun)
discretion in keeping secret information	discretion in practical affairs
the state of being secret	knowing how to avoid embarrassment or distress