Advanced
Cybersecurity & Cryptography
Q86 / 100
What is the principle of complete mediation in security?
Correct! Well done.
Incorrect.
The correct answer is B) Every access to every object must be checked for authorization — no cached or bypassed access controls — ensuring no security bypass
B
Correct Answer
Every access to every object must be checked for authorization — no cached or bypassed access controls — ensuring no security bypass
Explanation
Complete mediation (Saltzer-Schroeder): check every access, not just login. Cache invalidation attacks exploit cached authorization decisions. Reference monitors must be invoked for every access to enforced objects.
Progress
86/100