Filed Under: Windows

The Importance of Firewall – Why Firewall is Important


Written by Jack Lin

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Importance of Firewall

Whether your system is designated for a multi-billion-dollar enterprise or personal use, security should be the number one priority out of all.

If not, it seems like you are leaving the main door wide open when you are not at home.

So, firewalls work like a padlocked door to the house. When you couple it with other security programs, such as motion-sensitive cameras, alarms, or a guard dog, your belongings are much safer.

If you care about the safety of your computer, then the firewall is what you need. Users who do not know the importance of firewalls must read this blog.

Here, you will learn everything about a firewall. So, let’s begin with the importance of the firewall without further ado. But before we move, you should know what a firewall means and how many types there are for a firewall.

The Importance of Firewall – What Do You Understand by a Firewall?

The Importance of Firewall

A firewall is a kind of hardware or software program that protects the computer from cyberattacks over the internet. It is an application that regulates traffic to and from a network or computer. It either denies or permits communication depending on a set of rules inside a security policy.

Firewalls monitor outbound and inbound activities coming from the network for suspicious activities. They even block things that seem dangerous, depending on some security rules. They establish the first streak of defense from viruses, malware, and attacks.

Now, you should know the different kinds of firewalls and their importance of the firewall.

Besides, if you want to know the Firewall basics & DNS Firewall.

The Importance of Firewalls – Different Kinds of Firewalls

There are various kinds of firewalls that users can use to secure their information. Here, a client-based firewall is usually installed software onto a system, while a hardware firewall is a kind of hardware.

Basically, many routers come with a firewall. So, let’s discuss the different kinds of firewalls below!

1. Client-Based Firewalls

Unified Threat Management Firewall

UTM (Unified Threat Management) firewalls are often employed along with antivirus software. This firewall is aimed at being easy and straightforward to use.

Proxy Firewall

Proxy firewalls are also called Gateway firewalls. These firewalls are network security systems that protect network resources by filtering messages at the layer of an application.

2. Hardware Firewalls

Network Address Translation Firewall

NAT (Network Address Translation) firewalls are considered to be the safest firewall option. They hide a computer network within just one IP address. The IP address of a particular computer is visible only to other systems in that network.

Traditional Firewall

Traditional firewalls are even referred to as Stateful Inspection Firewalls. They deny or allow several traffic activities depending on a particular protocol. They monitor activities from the start to the end of a connection.

In simpler terms, there are two kinds of firewalls, which are personal and conventional firewalls. A conventional firewall is specially designed to protect joined networks, whereas a personal firewall protects an individual computer.

A personal firewall is useful for systems that move over various networks. For instance, users who employ a laptop as their own device will most likely connect to several Wi-Fi networks.

They may link to the internet from their office, home, library, or coffee shop. If you use a personal computer, you should know the importance of a firewall for securing the system.

If you are using secured or trusted networks, like one at your office or home, then conventional firewalls will perform the job better. Users who connect to insecure networks like coffee shops should invest in personal firewalls to maintain their privacy and safety.

Personal firewalls restrict access to the programs on your system using the internet. When the application attempts to make an outbound connection, a firewall might either restrict it or question if users like to continue building the connection.

The Importance of Firewall – Why Do Users Require a Firewall?

In the market, many computers arrive with a basic in-built firewall. However, it is not the best thing to do when it comes to protection.

We recommend you employ a devoted firewall appliance or service. Do you like to know what a firewall can do? If so, you should see the importance of a firewall first.

A firewall is capable of various things when it comes to the security of a system. Firewalls employ preventive measures to stop threats before they actually happen. Here are some unique features of a firewall.

So, Let’s Have a Look at These Special Firewall Features.

  • Restricts ransomware from getting traction
  • Produces a protected network for multi-user interaction like online video gaming options
  • Assists in keeping private information like social security numbers or online banking credentials safe
  • Secures your system from unlawful access
  • Blocks or alerts the user if there’s an illegal inbound or outbound attempt to connect with your system
  • Let users control which tools can enjoy access to the LAN or the internet. A firewall even provides users with information regarding the program that carries out an attempt
  • Monitors applications for inbound connection, which are there on the list
  • Blocks unsolicited content
  • Prevents unsolicited traffic from the network and the locally installed applications
  • Hides the system from port scans by not giving a response to unwanted network traffic
  • Regulates and monitors all incoming and outgoing internet users
  • Keeps track of the recent incoming, outgoing, and invasion events to find out who tried to get access or has gotten access to the system
  • Offers information regarding the destination servers with which applications try to interact with
  • Blocks or prevents hacking attacks or attempts from cybercriminals

Now, you know the importance of a firewall and why it is essential to install a firewall on your system. It is significant to install a firewall on both Windows and Mac systems.

Does a Mac System Require a Firewall?

Most Mac users might be wondering if a firewall is important for Mac systems or whether their systems need one.

So here, we would like to tell you that Mac systems come with firewall software installed from the Apple factory. However, the firewall is disabled actually unless users manually enable it.

Most Apple users would think that there’s actually no requirement for Mac systems to install a firewall. This is because of their Unix-based operating system.

This is actually not true, and there’s a possibility that Mac systems can become breached or infected. However, it is not as common as you will find with Windows PC because of the popularity of this OS.

Most users can work fine without an antivirus or firewall on a Mac computer. It is fine for people who use their computers for personal use only. However, for users who carry out online banking transactions, use the system for their business, or deal with other sorts of sensitive information or materials, they should go further and enable the firewall.

So, firewalls help you in protecting your system from online threats or other malicious actions. However, installing a firewall is not everything. For understanding it better, you must read about the limitations of a firewall.

As you know, a firewall is far from being perfect, and it definitely has its limitations. Let’s take a glance at its boundaries.

Limitations of a Firewall

  • If your system has been breached by malware, spyware, or other software, those threats could manipulate the firewall. It is even possible for threats to shut down or bypass firewalls.
  • Firewalls cannot notify users of an attack if they have not been appropriately configured.
  • A firewall cannot protect the entire network from a threat.
  • False alarms produced by firewalls can desensitize a user to alters regarding actions that are not malicious.


1. Why do I need a firewall? A firewall acts as a barrier between your network and the internet, protecting you from unauthorized access, malware, and data breaches.

2. Can’t I rely on antivirus software alone? While antivirus software is important, it primarily focuses on protecting individual devices. A firewall provides network-level security, safeguarding all connected devices.

3. Are firewalls only necessary for large organizations? No, firewalls are essential for organizations of all sizes. Even individual users can benefit from using a firewall to protect their personal devices and data.

4. Are there free firewall options available? Yes, there are free firewall solutions available that offer basic protection. However, for robust security features and comprehensive support, it’s advisable to invest in a commercial firewall solution.

5. Can a firewall guarantee 100% protection against all threats? While a firewall is an essential security measure, it cannot guarantee complete protection. It should be used in conjunction with other security practices, such as regular updates, strong passwords, and employee awareness training.


A firewall is an excellent addition to the security system of a computer. That’s the reason users should understand the importance of a firewall.

However, it should not be employed as the only defense system against malicious threats to the system.

It is vital to apply secure internet surfing practices and antivirus software like Safebytes Total System Care to protect the computer.

After reading about the importance of a firewall, you should install a firewall on your Windows or Mac system.

However, it is best not to trust your firewall all alone. We recommend you choose other defense systems to protect your system from cyberattacks.


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