Organizations can no longer rely on edge firewalls alone to provide network security. Once attackers get past an edge firewall, they can move laterally to high-value assets. This book illustrates how internal firewalls can help your organization secure east-west network traffic and prevent attackers’ lateral movements. In the Internal Firewalls for Dummies Guide, you’ll learn: The different types of network traffic and the firewall types that protect them. How distributed internal firewalls combine the best of hardware-based enterprise edge firewalls and software-based micro-segmentation solutions. How organizations successfully deploy distributed internal firewalls.