Home Technology Computing Why Do We Need A Firewall for Cybersecurity?

Why Do We Need A Firewall for Cybersecurity?

You may be misguided if you think that cyber theft is just a problem for big and multinational organisations. CNBC denotes that 43% of the cyberattacks target small and medium-sized businesses. Averagely, cyberattacks cost these small businesses upwards of £200,000. Therefore, regardless of your business’s size, it’s vital to enact techniques of securing it on the web. If your business hasn’t already taken the necessary steps to protect it’s IT infrastructure, enlisting the skills and guidance of a cyber-security business like Pisys.net is invaluable.

Here is where having a firewall in place becomes an essential cyber protection tool that all organisations need to have to stop hacking and data breaches. A network security firewall, for instance, filters out any incoming traffic to avert malicious files from being downloaded. Also, it will block attackers from gaining unauthorised access to sensitive files.

What’s a Firewall?

In simple terms, it is firmware or software that thwarts unauthorised access to a network. It uses predetermined rules to recognise and block threats from incoming and outgoing traffic. A firewall is helpful in both business and personal settings. What’s more, the present-day computers, that is, Windows, Mac and Linux, incorporate inbuilt firewalls. Below are the top reasons why you need a firewall to protect your business against potential cyberattacks.

It Blocks Inbound Threats

Although you can deploy firewalls on several points within your company’s network, the best location to install them is the network’s perimeter. Having a firewall at the network perimeter will impose a boundary between a suspicious public internet and a protected internal network.

Also, by installing a firewall at the network perimeter, your organisation will ensure that any traffic that enters and leaves the organisation’s network passes through one point. Installing a firewall at this point makes it easy to attain total visibility into data that passes via the network boundary.

Moreover, a perimeter-based firewall allows proactive security against prospective cyberattacks. An inventive firewall with threat prevention abilities, for instance, can recognise and stop attempted attacks before they get into a corporate network. With this, the damage that could arise from these attacks is significantly lowered.

Offers In-depth Protection

Firewalls can provide in-depth protection against the threats that manage to penetrate through the network boundary. You can use network firewalls to section your network. In this case, you will be able to get superb visibility into the internal traffic and make it hard for a malicious insider or intruder to attack the organisation’s network.

In addition to preventing potential threats, a firewall installed in a corporate network takes advantage of identity-based inspection and application control. Application control allows the firewall to recognise an app where network traffic comes from. Subsequently, a firewall will implement application-specific security policies that decrease the risks linked with suspicious apps and allows the company to block them.

On the other hand, identity-based inspection offers a background analysis of your network flow. By evaluating the user carrying out a specific action, it’s pretty easy for a firewall to apply access controls according to employees’ assigned rights and roles. The fact that most data breaches entail an abuse of a privileged account means that assessing the actions carried by these accounts is crucial.

Offers Individualised Security

Different organisations have different security needs. While the standard firewalls are a ‘one size fits all,’ the modern-day firewalls can be tailored to your company’s security requirements. For instance, a company in the eCommerce business will face different threats than one in the tourism business. In general, picking an industrial firewall that endures extreme environments makes sure that the organisation’s cybersecurity is superb.

It Guarantees Unique Security Demands

Innovative firewalls are helpful when it comes to securing a company’s network as they can protect the organisation’s entire network infrastructure. As business networks evolve and grow, they regularly include several endpoints, like traditional servers and user workstations, cloud-based infrastructure, mobile devices and IoT (internet of things) devices. In this case, protecting a heterogeneous and growing network can be an uphill task.

Since it functions at a network level instead of the endpoint, a firewall can secure all devices in a company’s network. It would also be helpful to install a firewall containing USM (unified security management) to incorporate the entire company’s security data into one console. Well, this is useful because the low number of cybersecurity experts means that most businesses find it hard to get the right and skilled security team.

Besides offering cloud support, an innovative firewall can be installed as a cloud-based virtual appliance. With this, the company will easily install security where it is required and make use of the scalability of the cloud-based infrastructures. As opposed to the hardware-based security gadgets that need you to buy extra hardware, a cloud firewall is easily incorporated into a company’s growing network.

Protections Offered by Firewalls

There are several types of firewalls, and they offer protection against different things. Generally, the common types of threats that a firewall protects include:

Malware Insertion – a deep packet inspection firewall comes in handy when it comes to recognising and averting virus installation attempts from other sources.

Data Exfiltration – in addition to identifying threats on the incoming traffic, perimeter firewalls help detect and stop data exfiltration from ATP (advanced persistent threat).

Insider Attacks – you can install firewall networks on any application or on the endpoints to provide in-depth security that prevents the spread of attacks that breaches the perimeter, especially insider attacks.

Final Thoughts

Picking a firewall can be a tall order due to the high variation of firewalls in the market. Also, the firewalls contain different features. So, understanding your business needs and what you want the firewall to protect against should be your number one priority when looking out for a firewall.