Knew this cold, confidentiality, integrity, availability, but I rambled a bit trying to give examples for each one and I could tell the interviewer was waiting for me to just stop.
Define the CIA triad as Confidentiality, Integrity, and Availability, then explain each component with a clear example relevant to software engineering. Emphasize how these principles guide trade-offs in system design and security decisions.
Pro tip: Mention that the CIA triad is a foundational model but not exhaustive; acknowledge that real-world systems often balance these goals with other factors like privacy and usability. This shows a nuanced understanding beyond textbook definitions.
State that CIA stands for Confidentiality, Integrity, and Availability, and that it's a widely used model for information security.
Describe confidentiality as ensuring data is accessible only to authorized parties. Give an example like encryption or access controls.
Describe integrity as ensuring data is accurate, consistent, and not tampered with. Mention techniques like hashing, checksums, or digital signatures.
Describe availability as ensuring systems and data are accessible when needed. Mention redundancy, failover, and DDoS protection.
Discuss how these principles influence design decisions, such as trade-offs between security and performance, and how to prioritize based on context.
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.