Briefly explain database security. What do you understand by multilevel database security.
[…] 5 b ) Briefly explain database security. What do you understand by multilevel database security… […]
Database security involves implementing measures to protect a database from unauthorized access, data corruption, and other threats. Its requirements include ensuring confidentiality, integrity, availability, and accountability of the data within the database.
- Confidentiality: Data should only be accessible to authorized users and entities.
- Integrity: Data should remain accurate and consistent throughout its lifecycle, and unauthorized modifications or deletions should be prevented.
- Availability: Users should be able to access the database and its resources as needed without interruption.
- Accountability: Activities within the database should be traceable to specific users, ensuring accountability for any changes or access.
Part 2: Multilevel database security involves managing data with different sensitivity levels within the same database system. This includes sensitive and insensitive data, where sensitive data requires higher security measures.
- Sensitive and Insensitive Levels: Data is classified into different sensitivity levels based on its importance and confidentiality. Sensitive data requires stricter security measures, while insensitive data may have fewer restrictions.
- Integrity Lock: Implementing mechanisms such as integrity locks ensures that sensitive data cannot be modified or accessed without proper authorization.
- Trusted Frontend: Utilizing a trusted frontend interface helps enforce security policies and access controls, ensuring that only authorized users can interact with sensitive data.
- Communicator Filter: Implementing filters or gateways between different sensitivity levels ensures that data flows securely between them, preventing unauthorized access or leakage.
- Distributed Database: In a distributed database environment, ensuring multilevel security involves implementing consistent security policies and controls across all nodes and segments of the database.
- Restricted Views: Providing restricted views allows users to access only the data they are authorized to see, based on their security clearance and role within the organization.
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[…] 5 b ) Briefly explain database security. What do you understand by multilevel database security… […]