A firewall controls what traffic is allowed in and out of your network, blocking malicious or unauthorised connections. A next-generation firewall (NGFW) goes further — inspecting traffic deeply to add intrusion prevention, application control, URL filtering, anti-malware and threat intelligence. Most business firewalls today are NGFWs, whether delivered as a hardware appliance or from the cloud.

Hardware (NGFW) suits fixed, high-traffic locations like data centres and head offices, where you want maximum throughput and on-premises control. Cloud firewall (FWaaS) suits cloud workloads and distributed or remote teams, scaling without hardware to maintain. Many businesses use a hybrid: an appliance at the core, cloud firewall for branches and remote staff. The comparison table above breaks down the advantages of each.

Firewall-as-a-Service (FWaaS) is a firewall delivered from the cloud rather than a box on your premises, so it can protect users and applications wherever they are. SASE (Secure Access Service Edge) goes further by converging networking and several security functions — including FWaaS, secure web gateway and zero-trust access — into one cloud-delivered service, which suits modern distributed organisations.

A managed firewall is run for you by a security provider, who configures it, applies updates, tunes rules and monitors it 24×7 from a Security Operations Centre (SOC), responding to threats as they arise. It's valuable if you don't have an in-house security team, or want round-the-clock cover — a firewall only protects you if someone is actually watching it.

Yes. CERT-In directions set expectations around security logging and incident reporting, the DPDP Act covers personal data, and sectors like banking have their own rules — so logging, retention and monitoring matter. Hardware is usually a one-time appliance cost plus annual support/subscription; cloud is a per-user or per-bandwidth subscription. The figures shown here are illustrative, and this is general guidance, not legal advice — confirm specifics with the partner and your compliance advisors.