I. Explain that the Bell–LaPadula (BLP) model ensures the confidentiality of the modeled system by using MACs, data classification, and security clearances.
II. Compare and contrast between the two access modes that are part of the BLP model: simple security and the * (star) property.
• Simple security (known as the read property) restricts users with a lower clearance from reading higher-clearance level messages but ones with a higher level can read lower levels without issue.
• The * property, alternately, prohibits a high-level subject from sending messages to a lower-level object.
III. Illustrate the example provided in the text of the two access modes that are in the BLP model.