In previous articles, we have explained the benefits of internal network firewalls, also known as internal segmentation firewalls. The primary purpose is to secure internal network traffic, particularly between sites, functional areas or departments. Another common use is to provide an additional level of protection for sensitive areas of your network (i.e. databases, R&D) or high-risk areas (i.e. development environments, staging areas).
These developed in popularity so we offered an internal network firewall service to our customers. You can read why below.