What is a Firewall and Its Function in Maintaining Data Security

According to its Indonesian meaning, a firewall is a firewall. However, that's just a literal term. We often encounter this term when dealing with technology and the internet. However, what exactly is a firewall? To find out what a firewall is, check out the following article!
 

What is a Firewall?

A firewall is a security system created to protect your device. The devices in question are both computers and smartphones. Maybe this will lead you to question, then, what is the difference between a firewall and the antivirus installed on all technological devices today?

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The purpose of firewalls and antiviruses is the same. However, there is a location of authority for both, which differentiates them. Antivirus will protect your device from potential dangers such as virus attacks internally, while a firewall will protect the device from viruses and other attacks on the computer network.

The main task of a firewall is to control and monitor all access in and out through a device's network connection with predetermined rules. In addition, firewalls also have an important task that most users are unaware of maintaining the internet network connected to a device.
 

What is the Firewall Function?

After understanding the definition, you need to know what the functions of a firewall are that are important to understand. The following are the functions of a firewall.
 

1. Firewall for Protection from Virus Attacks or Irresponsible Parties

This one firewall function has often been mentioned; the aim is to protect against the worst possibilities via the internet, such as virus attacks and even from irresponsible parties. The attacks referred to in this case include misuse of information, hacking by hackers, and data theft.

Also Read: Kenali Apa Itu Cyber Crime dan Cara Untuk Menanggulanginya
 

2. Firewall to Protect against Data Leaks

A firewall's most widely known primary function is to protect the device. However, firewalls can also protect data stored in the cloud. Firewalls will prevent leaks of your data, whether personal data or essential company documents. Firewalls are also able to prevent users from sending data that is important or considered confidential to other parties or irresponsible parties.

Also Read: Memahami Apa itu Data Security: Pengertian dan Manfaatnya bagi Perusahaan Anda
 

3. Firewall Blocks Unwanted Content

In addition to protecting your network and data, firewalls can block internet content. The firewall will block content you don't like when browsing and other activities requiring internet access. The way to have a firewall block certain content or sites is to set the URL address you don't want.
 

4. Firewalls Can Monitor Bandwidth

Firewalls also monitor the bandwidth you use when accessing the internet through your device. Apart from monitoring, firewalls also limit your bandwidth when accessing internet content. In addition, you can also choose priorities for internet bandwidth restrictions.

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Why Does Your Business Need a Firewall?

Firewalls are important, especially for business owners who use internet services. Here are some reasons why firewalls are vital for a business!
 

1. Firewalls are Part of Cyber Protection

Firewalls are part of cyber protection or cybersecurity that protects computer systems, devices, and networks. Without a firewall, anyone can access cyber protection important and sensitive information online.

Also Read: Pahami Apa Itu Cyber Security dan Perannya Untuk Perusahaan Anda

The worst thing that will happen if a business does not protect its computer systems, devices, and networks with firewalls is that data can be accessed by others and exploited irresponsibly. Attacks like this do not only occur on a business scale but can occur on a country scale.

One such attack is a DDoS or Denial of Service attack. This attack allows hackers to request to join your server. Hackers will, of course, continue to send unilateral requests so that they will overwhelm your server. Some of these things can cause data loss on your server.
 

2. Firewalls Help Businesses to Avoid Data Loss

Carelessness can sometimes happen anytime, especially in a business where many individuals manage it. Such carelessness can be in the form of data transfer errors and carelessness in deleting data, an important business asset.

A firewall allows you to manage and organize files that are not company assets. The firewall will also provide detailed information about the data transfer to ensure that the data transferred is correct and provide other details to minimize the loss of your business data.

After reading this article, of course, as a business owner, you will reconsider using a firewall to protect your business, right? Choose a service that guarantees protection so you don't risk losing valuable data.

Cloudmatika comes with Cyber Protection, so you no longer have to worry about cyber attacks. Cyber Protection will integrate backup & recovery, disaster recovery, and AI-based protection, leaving your data protection concerns to Cloudmatika. What are you waiting for? Contact Cloudmatika for more information! cloudmatika cyber protection