QuestionApril 25, 2025

What is the primary objective of the Bell-LaPadula (BLP)confidentiality model in computer security? To ensure that data integrity is maintained across different levels of access. To prevent unauthorized users from modifying sensitive information. To prevent data leakage by restricting the flow of sensitive information based on security clearance levels. To ensure the availability of data to all users within an organization.

What is the primary objective of the Bell-LaPadula (BLP)confidentiality model in computer security? To ensure that data integrity is maintained across different levels of access. To prevent unauthorized users from modifying sensitive information. To prevent data leakage by restricting the flow of sensitive information based on security clearance levels. To ensure the availability of data to all users within an organization.
What is the primary objective of the Bell-LaPadula (BLP)confidentiality model in computer security? To ensure that data integrity is maintained across different levels of access. To prevent unauthorized users from modifying sensitive information. To prevent data leakage by restricting the flow of sensitive information based on security clearance levels. To ensure the availability of data to all users within an organization.

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Answer

To prevent data leakage by restricting the flow of sensitive information based on security clearance levels. Explanation 1. Identify the primary objective of the Bell-LaPadula model The Bell-LaPadula (BLP) model focuses on **confidentiality** in computer security. Its main goal is to prevent unauthorized access and leakage of sensitive information by enforcing rules based on security clearance levels. 2. Match the correct description The BLP model enforces two key principles: 1. **Simple Security Property ("no read up")**: Users cannot read data at a higher security level than their clearance. 2. **Star (*) Property ("no write down")**: Users cannot write data to a lower security level, preventing leakage.

Explanation

1. Identify the primary objective of the Bell-LaPadula model <br /> The Bell-LaPadula (BLP) model focuses on **confidentiality** in computer security. Its main goal is to prevent unauthorized access and leakage of sensitive information by enforcing rules based on security clearance levels. <br /><br />2. Match the correct description <br /> The BLP model enforces two key principles: <br />1. **Simple Security Property ("no read up")**: Users cannot read data at a higher security level than their clearance. <br />2. **Star (*) Property ("no write down")**: Users cannot write data to a lower security level, preventing leakage.
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