Network security requires layered defenses. No single security control is perfect. Multiple layers ensure that if one is bypassed, others provide protection. Metro Detroit businesses must implement comprehensive network security.

Perimeter Security

Firewalls are the first line of defense. They block unauthorized traffic from entering the network. Next-generation firewalls inspect application-layer traffic, not just network-layer traffic.

Intrusion prevention systems (IPS) detect and block attacks. DDoS protection mitigates distributed denial-of-service attacks. Web application firewalls (WAF) protect web applications from attacks.

"Layered security reduces breach impact by 70% compared to single-layer defenses"

Internal Segmentation

Network segmentation divides the network into zones with restricted traffic between zones. Compromised systems in one zone cannot access other zones. This limits lateral movement by attackers.

Zero trust networks verify every access request regardless of source. Users and devices must authenticate and be authorized for each resource. This prevents unauthorized access even if credentials are compromised.

Security Layers

  • Perimeter firewalls
  • Intrusion prevention
  • Network segmentation
  • Endpoint protection
  • Monitoring
  • Incident response

Endpoint Protection

Endpoint Detection and Response (EDR) monitors endpoints for suspicious activity. EDR detects malware, unauthorized access, and data exfiltration. EDR enables rapid response to threats.

Host-based firewalls on endpoints provide additional protection. Disable unnecessary services and ports. Enable encryption for sensitive data.

Monitoring and Response

Security Information and Event Management (SIEM) systems correlate logs from multiple sources. SIEM identifies security threats through pattern analysis. Alerts enable rapid response to threats.

Incident response procedures enable coordinated response to security incidents. Clear roles and responsibilities ensure effective response.