Firewall as a Service delivers cloud-native, stateful Layer 7 inspection and policy enforcement at every network edge — branch, campus, data centre, and cloud — without the hardware refresh cycles and per-site management overhead of appliance-based firewalls. FWaaS is a core component of SASE architecture, enabling organisations to retire distributed firewall appliances while enforcing consistent policy from a single cloud control plane aligned to NIST SP 800-41 and PCI DSS network segmentation requirements.
Related: SASE · Secure Web Gateway · Zero Trust ZTNA · Microsegmentation · PCI DSS