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Firewall
Security
Network security control enforcing allow/deny rules for traffic between networks, hosts, or apps.
Definition
Firewalls enforce policy on network traffic using rules (ports, IPs, protocols). They can be network-based or host-based and often complement intrusion detection and WAFs.
In plain English
Network security control enforcing allow/deny rules for traffic between networks, hosts, or apps.
Why this matters
Why it matters: Restricting network access reduces attack surface and helps protect data systems.
Example
Example: Allow inbound only to 443 (HTTPS), restrict admin ports to VPN, and monitor firewall logs.
Apps Using Firewall
Examples of apps that implement or relate to this privacy concept
