The Role of Network Firewalls in Defending Your Data

For the first three quarters of 2020, about 36 billion data breaches got exposed as researched by RiskBased Security. Most of these breached data included password and username pairings for music streaming services, online banking, and social media accounts. In this age where malicious attackers use advanced Malwarebytes and ransomware to fish data, having a robust and highly reliable network firewall is a must.

A Firewall generally represents indispensable network firewall security for industries today. Its forms of security range from simple packet filters to robust deep packet inspection with intrusion detection features. Firewall designs range from software to hardware firewalls that can be used at the field level industries. But why do industry networks or even your personal network need firewalls? Let us discuss the role of network firewalls in defending your data.

General Role of Network Firewall Functions

As said earlier, firewalls are essential to industrial facilities because they are mostly connected to different networks or converse through wired transmission lines with less secure network technologies, i.e., wireless networks. The firewall becomes the first line of defense against alien attacks or access to the industry network and only allows desired traffic in and out of it.

Although PCs already have an installed firewall such as the Microsoft Windows system firewall, that is just what we call host firewalls. There is a difference between a host firewall and a network firewall. Networkingfirewalls are dedicated devices or systems that are placed right into the network rather than one PC. It is more focused on securing the network from being breached. That is why it is still essential for industries to acquire a dedicated firewall for each of their different networks.

The most general function of firewalls is to filter packets. However, due to the advancement of attacks developed by hackers, firewall functionalities have also increased. Below are additional roles of firewalls to defend against attacks.

Preventing Hacks

Because of the rise of eCommerce, online hacking and data fishing occurrences also rose significantly. Firewalls defend your networks from unauthorized connections that hackers try to reach. It safeguards your network from unauthorized links from potential hackers. Firewalls are essential to protect your data, especially nowadays that most data is stored in the cloud.

Monitoring Network Traffic

Generally, firewallnetworks monitor traffic at all times to safeguard your network. IT personnel can acquire information about your network traffic from the continuous monitoring of the firewall networking to create advanced network firewall security layers.

Promoting Privacy

With more robust firewalls, it can be much harder for your data to be breached and stolen by malicious attackers. It promotes a high quality of privacy that can even improve trust in your organization. A firewall network is integral for your network data’s defense against threats and cyber attacks. It can provide private access for your data to protect the vulnerable programs attached to your network.

For the firewall network to function correctly, the layered network security architecture is needed to be implemented. The layered network firewall security should involve:

  • Regular assessments
  • Endpoint protection
  • Employee training and awareness
  • Web and email filtering
  • User access control
  • Patch management
  • Data backups

These layers provide multi-layer cybersecurity and lessen the risk of security breaches in your network.

Network firewall in an industrial environment level

After knowing the roles of a firewallnetwork, it is also best to understand its applications and requirements in an industrial network environment.

The firewall at the company boundaries

As discussed earlier, firewalls protect your organization’s data from network security threats outside. And implementing this network security plays various roles in the partitioning of network portions. Firewalls effectively separate the production network from the rest of the company network to avoid direct access to the organization’s data center.

The firewall in an external site

Industrial hardware firewalls have router functions that are perfect for smaller external branches or sites.

So, despite the distribution stations being separated, they can be connected with the rest of the company infrastructure through a WWAN network. The primary hardware firewall can still control the network traffic coming out of and going into the external site’s local network.

The firewall at the field level

Most attacks occur from the inside of a network. A network firewall at the field level can limit the communication between the device and the data center under the network firewall securityconcept within a local network. The firewall network at this level can also expressly limit the accesses in the data center and can only permit specific connections to prevent unwanted harmful access.

In summary, the security of networks is crucial to defend your organizational data. Until today, a lot of data is still being accessed and stolen by hackers despite organizations having a firewall to protect their data. That is why network firewall security companies continue to strive to develop and integrate advanced security protocols in firewalls to counter malicious attacks. For your organization to be truly safe from an attack, it is better to implement an advanced NGFW to your network for deeper and more robust security. Do you think Sangfor can be your saviour? Let us know in the comment section below.