← Back to Notes
The CIA Triad
A foundational model for Information Security
The CIA Triad represents the three core principles that guide organizations in protecting their information and systems.
Balance all three to build strong, secure, and reliable systems.
Confidentiality
Integrity
Availability
Confidentiality
Ensures information is accessible only to those authorized to have access.
Key Points
- Prevents unauthorized access
- Protects sensitive data
- Maintains privacy
Integrity
Ensures information and systems are accurate, complete, and not altered improperly.
Key Points
- Prevents unauthorized changes
- Ensures data accuracy
- Maintains trust and reliability
Availability
Ensures information and systems are available to authorized users when needed.
Key Points
- Ensures uptime and access
- Supports business continuity
- Meets user needs
Security isn't just about technology — it's about balance.
When Confidentiality, Integrity, and Availability work together, organizations stay secure and resilient.
← All Notes
Next up: Types of Malware (coming soon)