Network segmentation is the practice of splitting a computer network into subnetworks, each being a network segment. It’s a powerful strategy for both security and performance.
Why Segment?
Imagine a submarine. It has watertight compartments so that if the hull is breached, only one section floods, and the ship stays afloat. Network segmentation works the same way. If a hacker breaches your guest WiFi, they shouldn’t be able to access your financial server.
Implementation Strategies
We typically recommend separating networks into at least three zones:
1. Guest Network: Internet only, no internal access.
2. IoT Network: For cameras, thermostats, and smart devices (which are often insecure).
3. Corporate Network: For employee devices and sensitive data.