What is firewall: Firewallsprotect against cyber attacks by

Firewallsprotect against cyber attacks by blocking malicious traffic. Learn more about howfirewallswork, different types offirewalls&firewallexamples. What is afirewall? Afirewallis a security system designed to protect networks by monitoring and controlling incoming and outgoing traffic based on predetermined security rules. It acts as a barrier between trusted internal networks and untrusted external networks, such as the internet.Firewallscan be hardware, software, or cloud-based solutions, and they have been essential in network ... Firewallsprotect networks by monitoring and controlling traffic based on defined rules. Learn what afirewallis, how it works, and explore key types. Oct 16, 2025 ·Afirewallis the first line of defense in cybersecurity, acting as a security barrier between internal systems and external networks. It forces all traffic through a single checkpoint, where data packets are monitored, filtered, and either allowed or blocked based on predefined rules.