Foundation glossary/Core concepts
CIA Triad
Companion card for the Foundation course — study the related lesson for full progress.
Simple explanation
Three goals: keep data secret, correct, and working when needed.
Technical explanation
Confidentiality, Integrity, Availability.
Real-life scenario
Gmail privacy (C), correct PhonePe amount (I), college portal up on results day (A).
Security relevance
Every control you pick should protect at least one of C, I, or A — otherwise it is theatre.
Practical example
Encrypt DB (C); checksums (I); redundant servers (A).

Mini quiz
A college portal is down on results day. Which CIA goal failed?
Related lesson
Continue in the Foundation course: open lesson →