Cybersecurity Mastery (Part 2): Advanced Threat Protection for 2025
1. Implementing Zero Trust Architecture
The 3 core principles:
- Verify explicitly (never trust)
- Least privilege access
- Assume breach (monitor everything)
2. AI-Powered Threat Detection
# Anomaly detection with Python
from sklearn.ensemble import IsolationForest
import numpy as np
# Sample network traffic data (features: duration, packets, size)
data = np.array([[2, 50, 1024], [1, 45, 980], [120, 5000, 50000]]) # Last one is anomaly
model = IsolationForest(contamination=0.1)
model.fit(data)
print(model.predict(data)) # -1 = anomaly
3. Blockchain for Security
Practical applications:
- Immutable audit logs
- Secure software updates
- Decentralized identity
4. Quantum-Resistant Cryptography
Algorithms to adopt now:
- CRYSTALS-Kyber (Key encapsulation)
- CRYSTALS-Dilithium (Digital signatures)
5. The Future of Cybersecurity
2025+ trends to watch:
- AI vs AI attacks
- Biometric hacking
- 5G/6G vulnerabilities