What is a Firewall? A firewall is a network security solution that monitors incoming and outgoing network traffic to permit or block data packets based on defined security rules. Packets refer to data pieces formatted for internet transfer. They contain details such as the source and destination’s IP addresses and the message content. A firewall uses this packet information to allow or block network traffic based on a ruleset. Just like the name suggests, a firewall solution acts as a barrier between a company network and external Internet and other sources. The security systems analyze and block malicious network traffic, … Read more