SSCP Systems Security Certified Practitioner

Which of the following is one of the Biba model's three main rules?

A subject cannot read or modify an object of either a lower or higher integrity level. A subject cannot request services from an object that has a higher integrity level A subject cannot modify an object that has a lower integrity level. A subject can read an object that has a lower integrity level.

Correct Answer:

A subject cannot modify an object that has a lower integrity level.

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