What Is a Firewall? - Firewall Definition

April 18, 2022

A firewall is a network security measure that monitors incoming and outgoing network traffic. It compares this traffic to set security rules and permits or blocks data flow based on them.

Anastazija is an experienced content writer with knowledge and passion for cloud computing, information technology, and online security. At phoenixNAP, she focuses on answering burning questions about ensuring data robustness and security for all participants in the digital landscape.