• Backbone of modern organizations
• Comprises hardware, software, services, and facilities for network support and management

Physical Separation

• Security measures to protect sensitive information
• Often referred to as “Air Gapping”
• Isolates a system by physically disconnecting it from all networks
• Physical separation is one of the most secure methods of security, but is still vulnerable to sophisticated attacks

Logical Separation

• Establishes boundaries within a network to restrict access to certain areas
• Implemented using firewalls, VLANs, and network devices

Comparison

• Physical Separation (Air-Gapping)
  • High security, complete isolation
• Logical Separation
  • More flexible, easier to implement
  • Less secure if not configured correctly