Network Threats

• Spoofing attack
• Protocol abuse
• Zero-day attack
• ARP cache poisoning
• Denial of service
• Man-in-the-middle attack
• Session hijacking
• Brute force
• Physical-Local Access
• Compromised system
• Insider threat-malicious employee
• VLAN hopping
• Administrative access control
  • Access-control list
• Malware
• Social Engineering

Common Vulnerabilities

• Unnecessary Running Services
• Unpatched-Legacy Systems
• Unencrypted Channels
• Cleartext Credentials
• RF Emanation

Hardening Your Network

• Physical Security
• Network Security
• Device Hardening
• Host Security

Firewalls

• Types of Firewalls
• Implementing and Configuring Firewalls
• Troubleshooting Firewalls