Questions and Answers
What are the three properties of secure information according to the CIA Triad?
Confidentiality, Integrity, Availability
Which term refers to the property that ensures data is stored and transferred as intended and any modification is authorized?
Integrity
What does non-repudiation mean in the context of secure systems?
A subject cannot deny creating, modifying, or sending a resource
What does availability refer to in the context of secure information?
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What is the most important additional property that secure systems should exhibit, as identified by some security models and researchers?
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What does non-repudiation mean in the context of secure systems?
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What is the main purpose of information security?
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What are the three properties of secure information according to the CIA Triad?
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What does integrity refer to in the context of secure information?
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What does availability refer to in the context of secure information?
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Study Notes
CIA Triad
- The CIA Triad consists of three properties of secure information: Confidentiality, Integrity, and Availability.
Confidentiality
- Ensures that sensitive information is only accessible to authorized parties.
Integrity
- Ensures data is stored and transferred as intended, and any modification is authorized.
- Refers to the property that ensures data is not modified without authorization.
Non-Repudiation
- Ensures that a sender of a message cannot deny having sent the message.
- Means a sender cannot deny involvement in a transaction or communication.
Availability
- Refers to the property that ensures that data is accessible and usable when needed.
- Ensures that authorized parties have uninterrupted access to information.
Additional Properties
- Some security models and researchers identify Accountability as an important additional property of secure systems.
Purpose of Information Security
- The main purpose of information security is to protect the CIA Triad properties of secure information.
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