Meet the Firewall: The Unsung Hero of Your Network’s Security

The term firewall is not a new one, and it’s not as old of a term as you might think. Before it became commonplace in the computing environment, it was first introduced to the world in 1983 when it was used in a movie titled WarGames. Nowadays, it is used mostly in regard to network security. Let’s take a look at what a firewall does and what the different types of firewalls do.

First, What Does a Firewall Do?

A firewall’s name comes from the structures built into connected homes and multi-family residences that protect individual units from fires. A residential firewall keeps a fire from spreading, while a computing firewall monitors your network traffic for unauthorized connections. A properly configured firewall is a critical part of any cybersecurity strategy.

Firewall Varieties

There are many different types of firewalls out there. Here are just a few examples:

Virtual Firewall

A virtual firewall is hosted in the cloud. It protects an environment that is hosted in the cloud or within a virtual machine. You can customize your virtual firewall to suit your specific needs, be it for a specific application or to protect an entire cloud environment.

Stateful Inspection Firewall

Most modern infrastructures include this version of a firewall. It performs a function called dynamic packet filtering, a process which involves all traffic passing through a firewall being analyzed to ensure it is in the correct state, i.e. not infected by threats or otherwise.

Unified Threat Management Firewall

In addition to the aforementioned benefits, a UTM firewall also includes antivirus software. UTMs are designed to be a jack-of-all-trades-master-of-none solution. They work for many smaller businesses as a part of their network infrastructure to keep users and data protected.

Is a Firewall a Requirement for Your Business’ Cybersecurity?

In short, yes, although it should be mentioned that true cybersecurity includes much more than just a simple firewall. A firewall is only one piece of your cybersecurity strategy, so you will need even more safeguards put into place to keep your company as secure as possible from threats.

Microtechs can equip your business with the best security tools out there. To learn more, reach out to us at (415) 246-0101.