ISC2 · CISSP
Secure design principles and security models
CISSP · Lesson 10 of 34 · 1:11:01
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In this lesson
Prepare for the ISC2 CISSP exam, on the 2027 outline. In this lesson: secure design principles (least privilege, defense in depth, secure defaults, fail securely, separation of duties, zero trust, privacy by design, shared responsibility, SASE), and the Bell-LaPadula, Biba, Clark-Wilson, Brewer-Nash, and Graham-Denning models. Includes three original practice questions.
Preview the topics
- During a power failure, the door of the server room stays locked, while the exit doors on escape routes unlock. Which principle does the server room door follow?
- A consulting firm must stop an analyst who works for one hospital group from seeing the data of a competing group. Which model fits?
- In Bell-LaPadula, a user with a secret clearance tries to save a report into an unclassified folder. Which rule blocks this?