What is a Firewall?
How do firewalls work?
Firewalls can be either software or hardware devices and it’s your first layer of cyber security which work as a filtration system for the data that’s trying to enter your computer or network. Firewalls scan network packets for malicious code or attacks that have already been identified as established threats. Should the data packet be flagged and determined to be a security risk, the firewall stops it from entering the network and reaching your computer. There are several different ways security firewalls can monitor and regulate network traffic.