Defense in depth uses multiple security layers so that if one fails, others continue to protect assets.
What is Defense in Depth?
A cybersecurity strategy using multiple layers of protection so no single point of failure compromises security.
Security Layers
- Perimeter - Firewalls, WAFs, and IP filtering.
- Network - Segmentation, IDS/IPS, and monitoring.
- Endpoint - Antivirus, EDR, and host firewalls.
- Application - Secure coding, authentication, and authorization.
Implementation
Each layer should operate independently while contributing to overall security posture.
Strengthen Your Layers
Add IP threat blocking to your perimeter.