Systems Security Certified Practitioner (SSCP) — Question 14

What does the simple security (ss) property mean in the Bell-LaPadula model?

Answer options

• A. No read up
• B. No write down
• C. No read down
• D. No write up

Correct answer: A

Explanation

The simple security property, often referred to as 'no read up,' prohibits users from accessing data at a higher security level than their own. This is crucial for maintaining data confidentiality. The other options pertain to different aspects of the Bell-LaPadula model, such as data integrity and access rights, but do not define the simple security property.