Which security model strictly enforces 'no read up, no write down' for confidentiality?
A CISSP practice question covering Domain 3: Security Architecture and Engineering. Try answering before reading the explanation below.
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Why "Bell-LaPadula" is the right answer
Bell-LaPadula focuses on confidentiality with the simple security and *-properties (no read up, no write down). Biba is the integrity inverse (no read down, no write up). Clark-Wilson uses well-formed transactions. Brewer-Nash (Chinese Wall) prevents conflict-of-interest access.
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