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Firewall

Firewall

CYBERSECURITY DICTIONARY

Firewall

Firewalls are network security devices or systems that monitor and regulate network traffic (incoming and outgoing) based on defined security rules. Firewalls can be network or host-based. Hardware-based network firewalls filter inter-network traffic (typically between an internal and external network like the Internet), while host-based firewalls control traffic in and out of the computers on which they reside.

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