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Firewall Security: Everything You Need to Know

With the rise of remote work in recent years, firewalls have become an invaluable tool protecting businesses against dangerous and costly cyber threats. firewall technology has been developing since the 1980s and today it is available in different forms to protect the various systems that companies have. Therefore, “firewall” has become a general term for the various types of security firewall.

How does firewall security work?

Simply put, a firewall is established between private networks and the Internet. This technology is a wall that filters the traffic that comes from the public Internet.

Each company’s firewall will have different settings based on the potential threats they may experience.

This tool can prevent unauthorized access to your networks, data breaches and phishing scams that start with an email.

Some of the threats that a firewall can detect and remove include Trojans, malware, DDoS, and more. Once it detects them, it blocks the attack.

Types of firewall security

Companies have different infrastructures and require different firewalls to protect incoming traffic to their systems. The four types are:

  • proxy firewalls
  • packet filtering
  • state inspection
  • Next Generation Firewall (NGFW)

The proxy firewall controls the information that enters and leaves the systems. It protects the network by filtering messages that could become a gateway for hackers or allow them to carry out malicious cyber attacks.

Packet filtering analyzes the data that enters the private network of organizations. This type is the one that most people think of when they talk about firewalls because it is the oldest and most basic.

Stateful inspection is oriented towards network connections. Your primary duty is to inspect them and determine which ones will pass the firewall.

NGFW adapts to increasingly complex infrastructures that need protection. It specializes in protecting elaborate cloud environments, networks, and data centers. Essentially, it inspects the system to protect it from application-level threats.

Main concerns with firewalls

Before companies include firewalls in their business cybersecurity, they should be aware of these shortcomings:

  • You cannot prevent all threats from entering and affecting your system
  • Some types may need additional tools that you can use to improve your security posture

A firewall has its limits and cannot account for any threat imaginable. That’s why companies use layered cyber security that includes multiple versatile tools to defend against threats on their system.

A firewall is set up to detect specific threats like Trojans, and some suspicious activity might go unnoticed. Zero-day threats (new hacking techniques and methods) could lead to successful hacking attempts because a firewall doesn’t anticipate them.

Top Benefits of Firewall Security

The main advantages of a firewall for companies include that:

  • Protect data entering the system
  • Ensures network privacy.
  • Detects malicious traffic that could affect workflow and the proper functioning of networks and systems used by organizations

When threat actors breach systems, they are mostly looking for sensitive information that they can use for monetary gain. A firewall filters out malicious bots from getting in and messing with your system.

A firewall keeps networks private by detecting attacks such as malware that could allow hackers to enter the system and spy on employees and the work the company does.

One type of harmful traffic that could affect businesses is Distributed Denial of Service (also known as DDoS). This type of attack can generate fake traffic and overwhelm the system to the point that it is unreachable, unusable, and unreliable.

As a result, employees may fall behind on their work. If the attack is directed at the website, it can become too slow and cause customers and users to abandon your service and search for similar products elsewhere.

A firewall can detect malicious traffic mimicking to overwhelm websites and systems before they financially harm businesses.

Firewall vs antivirus

When setting up basic cybersecurity, many businesses wonder if they need antimalware and a firewall. The truth is that it is advisable to have both because they have different purposes and abilities.

Firewall specializes in detecting and mitigating threats that come from external traffic.

antivirus softwareon the other hand, it can eliminate threats that reach work devices through external sources such as USB.

Before installing antivirus on your devices, check if you already have antivirus protection because it is often included in Microsoft Windows packages.

Some firewalls also come equipped with an antivirus. You can expect that in guys like Next Generation Firewall.

Do Businesses Need Firewall Security?

Even if most of their work is done in the office and they don’t have remote infrastructures or websites and apps to sell their services on, businesses can definitely benefit from firewalls.

It is important to choose the type of firewall dedicated to protecting your type of assets.

Therefore, companies must decide whether they need to improve how they protect their websites or the cloud environments that remote workers use to log into their systems.

Although firewalls can’t protect your system from every conceivable threat (such as sophisticated new hacking techniques), the tool is essential for businesses today.

Regardless of the type of organization, employees will almost always connect to the Internet using a Wi-Fi connection to complete tasks.

A firewall exists as the first line of defense standing between cybercriminals and a company’s critical assets that need protection.

Having a firewall will eliminate likely threats coming from public networks and make it harder for hackers to breach.

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