A firewall protects your data at the entry port

We have been hearing about it since we first started using computers. We even use it in our daily lives and yet, sometimes, we don’t exactly know what it is. A Firewall is responsible for creating a barrier between your internal & external data traffic and filters the malicious data from mixing in it. In this blog, we’ll discuss what a firewall is and what else do you need to know about it. Let’s learn more about it in today’s “cybersecurity what is it feature” article.

What is a Firewall? [cybersecurity what is it]

As discussed above, a Firewall is a cybersecurity tool that creates a barrier between the data going out and coming into your devices from the internet. The reason for using a firewall is to protect your data from mixing with malicious and spam data. Internet is full of such traffic that can conveniently intervene with your data and once it is injected in your devices, it can make your device prone to cyber-attacks which can result in a greater loss of data.

How does it work? [cybersecurity explained]

The traffic from your device or from the internet enters your device through ports. Once you install a firewall in your device, it protects these ports with a control list. This control list includes IP addresses, domains, and other programs. The malicious or hazardous IP addresses and domains are barred from entering your devices through the ports with the help of control lists. But wait, what are the types of firewalls? Let’s learn about them in today’s cybersecurity what is it article.

What are the different types of firewalls?

Cloud-based Firewall:

This type of firewall is set up as a proxy server. It secures the cloud servers from getting infected by any data that’s passing from it or being stored in it. These are best for large-scale companies.

Hardware Firewall:

Just like a router, this firewall is set up in a physical device. This external device is then connected to your devices & it filters all the traffic before it enters your devices. However, it should also be noted here that hardware firewall are often not a great choice for handling multiple network sessions. Also, it can be hacked from with-in the device system.

Software Firewall:

This type of firewall is great for individual use. You simply install a firewall-based software on your device & it starts protecting your data traffic through the entry/exit ports. However, this type of firewall is best for individual use most of the time and isn’t suitable for corporate use. The reason being the management of so many devices at the same time.


Here it is. Now you know more about firewalls than most people do. However, knowing is not enough. What you also have understood from this blog is that your devices are at higher risk of mixing up with malicious data coming from the internet if they are not protected. I recommend you download Tor Browser Private Web + VPN and connect to the VPN whenever you’re using the internet. This will protect your identity and data from the hazardous traffic that can ruin your device and steal your data.

Keep coming back for more “cybersecurity what is it” articles.