Are you designing a security architecture for a , a commercial business , or an academic project ?
Risk management and operational controls. Why it’s different: Unlike lattice-based models (BLP, Biba), NIST SP 800-53 is a catalog of security and privacy controls. It is the de facto standard for US federal agencies and private sector best practices.
A subject at a specific integrity level cannot write data to a higher integrity level. This is known as "No Write Up" (NWU) , preventing low-integrity users from corrupting high-integrity data. The Clark-Wilson Model (Commercial Integrity) Information Security Models Pdf
Networks are broken down into small, isolated zones to contain lateral movement if a breach occurs.
This model ensures that high-level actions do not affect the view or actions of low-level users. It is designed to prevent "covert channels" (hidden ways of leaking data). Are you designing a security architecture for a
A subject at a higher clearance level cannot write data to a lower clearance level. This prevents accidental leaks of classified information to public domains.
Developed in the 1970s, the Bell-LaPadula model is a state-machine model used to enforce access control in government and military applications. Its primary focus is confidentiality. It operates on two main rules: It is the de facto standard for US
Developed in the 1970s, the Bell-LaPadula model is a state-machine model used to enforce data confidentiality in government and military applications. It utilizes a hierarchical security structure (e.g., Unclassified, Confidential, Secret, Top Secret).
Law firms, consulting agencies, and investment banks. 5. Non-Interference and Lattice-Based Models
Uses and well-formed transactions to maintain internal consistency. Brewer-Nash (Chinese Wall) Conflict of Interest