Questions and Answers
What is the primary purpose of confidentiality in data security?
Which of the following best describes data integrity?
What does availability in data security ensure?
What is the primary function of authentication in data security?
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Which of the following concepts relates to granting the minimum privileges necessary?
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What is the main goal of non-repudiation?
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Which security measure is an example of defense in depth?
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What is the role of authorization in data management?
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Study Notes
Confidentiality
- Protecting sensitive information from unauthorized access, use, disclosure, disruption, modification, or destruction
- Ensuring that only authorized individuals or systems have access to sensitive data
- Examples: encryption, access controls, secure storage
Integrity
- Ensuring that data is accurate, complete, and not modified without authorization
- Protecting data from unauthorized changes, deletions, or alterations
- Examples: digital signatures, checksums, access controls
Availability
- Ensuring that data and systems are accessible and usable when needed
- Protecting against data loss, system downtime, or denial of service
- Examples: backup and recovery, disaster recovery planning, redundancy
Authentication
- Verifying the identity of users, systems, or entities
- Ensuring that only genuine entities have access to resources
- Examples: passwords, biometric authentication, digital certificates
Authorization
- Controlling access to resources based on identity, role, or privilege
- Ensuring that only authorized entities have access to specific resources
- Examples: access control lists, role-based access control, mandatory access control
Non-Repudiation
- Ensuring that a sender of a message cannot deny having sent the message
- Protecting against denial of involvement in a transaction
- Examples: digital signatures, logs, audit trails
Least Privilege
- Granting only the minimum privileges necessary for a task or role
- Reducing the attack surface by limiting access to sensitive resources
- Examples: role-based access control, segregation of duties, privilege escalation
Defense in Depth
- Implementing multiple layers of security controls to protect against threats
- Combining different security measures to provide comprehensive protection
- Examples: firewalls, intrusion detection systems, encryption, access controls
Confidentiality
- Protects sensitive information from unauthorized access, use, disclosure, disruption, modification, or destruction.
- Ensures that only authorized individuals or systems can access sensitive data.
- Implementations include encryption, access controls, and secure storage solutions.
Integrity
- Assures data accuracy, completeness, and prevents unauthorized modifications.
- Protects data from unauthorized changes, deletions, or alterations.
- Tools for maintaining integrity include digital signatures, checksums, and rigorous access controls.
Availability
- Guarantees that data and systems are accessible and functional when needed.
- Provides protection against data loss, system downtime, or denial of service attacks.
- Strategies include backup and recovery, disaster recovery planning, and system redundancy.
Authentication
- Involves verifying the identity of users, systems, or entities accessing resources.
- Ensures that only legitimate entities can obtain access to sensitive resources.
- Common methods include passwords, biometric authentication, and digital certificates.
Authorization
- Controls access to resources based on user identity, role, or privilege level.
- Ensures that only users with proper authorization have access to specific resources.
- Techniques include access control lists, role-based access control (RBAC), and mandatory access control.
Non-Repudiation
- Guarantees that a sender of a message cannot deny having sent it, ensuring accountability.
- Protects against denial of involvement in transactional dealings.
- Practices include the use of digital signatures, comprehensive logs, and audit trails.
Least Privilege
- Involves granting users the minimum privileges necessary for their tasks or roles.
- Reduces vulnerability by limiting access to sensitive resources and information.
- Practices include role-based access control, segregation of duties, and monitoring for privilege escalation.
Defense in Depth
- Involves deploying multiple layers of security controls to safeguard against potential threats.
- Combines various security measures to create a comprehensive protective strategy.
- Utilizes tools such as firewalls, intrusion detection systems, encryption, and stringent access controls.
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Description
Learn about the basics of data security, including confidentiality and integrity. Understand how to protect sensitive information from unauthorized access and ensure data accuracy.
