Today’s Firewall is More Important in a Multi-Perimeter World explains how cloud adoption, remote work, mobile devices, and IoT have dissolved the traditional network perimeter into multiple, constantly shifting micro-perimeters. The paper shows that attackers are exploiting this fragmentation through ransomware, IoT malware, and encrypted threats that legacy firewalls cannot effectively inspect. It argues that security must move from a single control point to a distributed, policy-driven firewalling strategy built on next-generation firewalls. Modern NGFWs provide deep inspection of encrypted traffic, application-level control, segmentation, and zero trust enforcement across on-premises, cloud, branch, and home environments. By delivering unified visibility, centralized management, and ad

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