Refers to the quality or state of being secret or confidential. Often used in legal, business, or technical contexts.
The confidentiality of this information must be strictly protected.
The contract includes a clause regarding confidentiality.
機密性 is similar but often used for classified or highly sensitive information, whereas 秘密性 is broader and can apply to personal or general secrets.
Compound of 秘密 (secret) + 性 (nature, -ity). The exact historical derivation is straightforward; the word follows a common pattern for forming abstract nouns.