Cybersecurity — CIA Triad
Confidentiality
Only authorized users access data.
Controls
- Encryption
- Access controls
- Authentication
Integrity
Data remains accurate and unmodified.
Controls
- Hashing
- Digital signatures
- Version control
Availability
Systems and data accessible when needed.
Controls
- Redundancy
- Backups
- Disaster recovery
Implementation
# Confidentiality - Encryption
from cryptography.fernet import Fernet
key = Fernet.generate_key()
cipher = Fernet(key)
encrypted = cipher.encrypt(b"sensitive data")
# Integrity - Hashing
import hashlib
hash_obj = hashlib.sha256(b"data")
print(hash_obj.hexdigest())
Defense in depth
Physical → Network → Host → Application → Data
Mini Practice
- Implement encryption
- Use hashing for integrity
- Set up backups
- Review access controls
Up Next
Continue with Authentication - Identity verification.
Related Topics
Frequently Asked Questions about CIA Triad
What is CIA Triad in Cybersecurity?
CIA Triad is a fundamental concept in Cybersecurity. This lesson explains it step by step with clear examples, making it easy for beginners to understand.
How do I learn CIA Triad?
Start by reading the explanation above, then try the code examples. Practice by modifying the examples and experimenting with different values. Hands-on practice is the best way to learn CIA Triad.
Why is CIA Triad important in Cybersecurity?
CIA Triad is essential for Cybersecurity development. Understanding this concept will help you write better code and solve real-world problems more effectively.