📌 Authentication verifies who a user is, authorization determines what an authenticated user may do, and accountability tracks actions performed by users.
CIA: Confidentiality, Integrity, Availability
1. Which statement best describes the overall purpose of system security?
2. A security policy prevents an unauthorized employee from viewing confidential files but permits authorized employees to read them. Which CIA Triad property does this policy primarily protect?
3. After a user logs in successfully, which security function determines whether that user may delete a particular database record?
What does system security protect against?
Unauthorized access, modification, destruction, data theft, malware, vulnerability exploitation, and denial of service.
What are the three components of the CIA Triad?
Confidentiality, integrity, and availability.
What does confidentiality limit in the CIA Triad?
Information access to authorized users.
What does integrity prevent in the CIA Triad?
Unauthorized modification or corruption.
What does availability ensure in the CIA Triad?
Systems and resources remain accessible when required.
What does authentication verify?
Who a user is.
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