Reliable Business Firewalls: What Should Your Company Look For?

Businesses rely on connected technology throughout the working day. Employees use email, cloud platforms, online accounting software, shared files, video meetings and internet-based telephone systems, often across several devices and locations.

This connectivity makes business possible, but it also creates more opportunities for cybercriminals, malicious software and unauthorised users to reach your company systems.

Reliable business firewalls create an important security barrier between your internal network and the outside world. They monitor the information entering and leaving your network, apply security rules and help block suspicious or unauthorised activity before it can reach business-critical systems.

However, not every firewall provides the same level of protection. Choosing the right firewall requires more than purchasing a device, connecting it to the internet and hoping the blinking lights are doing something useful.

A business firewall is a security solution positioned between your company’s network and external connections such as the internet.

It inspects network traffic and decides which connections should be allowed or blocked according to predefined security rules. Modern next-generation firewalls can also include intrusion prevention, web protection, application control, malware scanning, secure remote access and extensive reporting.

Think of it as a security checkpoint for your network. Instead of allowing every person, application or connection to wander through freely, the firewall checks where the traffic is coming from, where it is going and whether it meets your company’s security requirements.

A business firewall can help:

• Block unauthorised access attempts
• Spot suspicious network activity
• Control which applications can use the company network
• Restrict access to unsafe or inappropriate websites
• Provide secure connections for remote employees
• Monitor internet and bandwidth usage
• Create reports about security events and blocked threats

Most internet routers include some form of basic firewall protection. This can provide a useful first layer of security, especially in a home environment.

A growing business, however, generally has more complex requirements.

Your company may have multiple employees, laptops, mobile phones, printers, servers, access points, cloud applications and remote users connected to the same environment. You may also handle customer information, employee records, financial data and confidential business documents.

A standard router is primarily designed to connect devices to the internet. It may fail to offer the visibility, reporting, threat detection, access control and ongoing security management available through a dedicated business firewall.

A business-grade firewall gives your company greater control over how the network is used and how suspicious activity is handled.

Reliability is not only about whether the firewall remains switched on. A reliable firewall must protect the network without unnecessarily slowing down everyday business operations.
Here are some of the most important features to consider.

1. Intrusion prevention

An intrusion prevention system, commonly called IPS, examines network traffic for activity that may indicate an attempted attack or exploitation of a vulnerability.

When suspicious behaviour is identified, the firewall can block or interrupt the connection before it reaches the intended system. Modern firewalls can combine intrusion prevention with antivirus scanning, web protection and application control.

2. Application control

Not all network traffic is equally important.

Business systems such as Microsoft 365, cloud accounting platforms, customer relationship management software and VoIP services may need to take priority over entertainment, downloads or other non-essential applications.

Application control helps identify which applications are using the network. Depending on the company’s policies, certain applications can be allowed, restricted, blocked or prioritised.

This gives the business more control over both security and performance.

3. Web filtering

Web filtering allows a company to restrict access to websites or content categories that may create security, productivity or compliance risks.

Different rules can be created for different users, teams or departments. For example, the marketing team may require access to social media platforms while those same platforms may not be necessary for other roles.

The aim is not to turn the office internet into a digital prison. It is to reduce unnecessary risk while guaranteeing employees can still access the tools required to do their jobs.

4. Secure remote access

Remote and hybrid work have changed how employees connect to company systems.

When employees work from home, travel or access the network from another location, their connection should be properly secured. A business firewall can support secure remote access through technologies such as virtual private networks (VPNs).

VPN and secure networking options help organisations connect remote employees, branch offices and cloud environments more safely.

5. Network visibility and reporting

You cannot efficiently manage a network when you cannot see what is happening inside it.

A reliable business firewall should provide useful information about:

• Security threats and alerts
• Websites and applications being accessed
• Bandwidth consumption
• Blocked traffic
• VPN connections
• Policy violations
• Unusual or suspicious activity

These reports help your IT provider spot potential problems, investigate incidents and adjust security rules when required. Sophos, for example, provides reporting on areas such as bandwidth usage, web activity, blocked threats, antivirus events and intrusion-prevention activity.

6. Routine updates and active management

Cybersecurity threats persist and change. A firewall that was accurately configured several years ago may no longer reflect your current network, employees, applications or risks.
Firewall software and security services need to be updated. Rules should be reviewed, licences renewed and configurations adjusted as the company changes.

This is why firewall management is as important as the device itself.

A sophisticated firewall with outdated software or poorly designed rules can create a false sense of security. Reliable business firewalls should be properly configured, monitored and maintained by people who understand both the technology and the business environment.

Can a Firewall Improve Network Performance?
A firewall cannot increase the internet speed supplied by your service provider. It can, however, help manage how the available connection is used.

Traffic prioritisation allows important business applications to receive preference over less important activity.

For example, a company may prioritise:

• VoIP telephone calls
• Video meetings
• Cloud applications
• Remote desktop connections
• Online accounting systems
• Other operational platforms

Non-essential downloads, streaming or high-bandwidth applications can be restricted or assigned a lower priority.

This may help create a more consistent experience for the systems employees rely on throughout the day.

For wider connectivity requirements, Ativo also provides business network connectivity solutions for single offices, remote users and businesses with multiple locations.

No single security product can protect every part of a business.

A firewall is a basic part of network security, but it should form part of a layered cybersecurity strategy. Different security solutions protect different areas of your technology environment.

Your broader security approach may include:

• Business firewall protection
• Endpoint and antivirus protection
• Email security
• Multifactor authentication
• Secure password management
• Software and operating-system updates
• Data backup and recovery
• Access control
• Employee cybersecurity awareness
• Continuous supervision and IT support

Microsoft describes firewall protection as one component within a wider defence-in-depth security approach.

Ativo’s business network protection services can help companies create a more complete security environment rather than relying on one isolated product.

Businesses should also have dependable data protection and backup solutions in place. A firewall may help prevent certain threats from reaching the network, but backups are still essential when systems fail, information is deleted, or a security incident affects company data.

The most expensive firewall is not automatically the most suitable one. The solution ought to match the size, structure, internet usage and risk profile of your business.

Before choosing a firewall, consider the following questions:

How many users and devices connect to the network?

Include more than just employee computers. Mobile phones, printers, servers, Wi-Fi access points, smart devices and other network equipment can all affect the capacity required.

What internet speed does the business use?

The firewall should be able to inspect and manage traffic without becoming a bottleneck.

Do employees work remotely?

Businesses with remote employees may need VPN functionality, secure access policies and stronger visibility over external connections.

Does the company have more than one office?

Multiple locations may need secure connections between branches, shared systems or cloud platforms.

Which applications are critical?

Your IT provider needs to understand which services should be prioritised and which applications may need to be restricted.

What information does the business handle?

Companies working with financial records, personal information, customer databases or other sensitive data may require stricter controls and reporting.

Who will manage the firewall?

Someone must remain responsible for monitoring alerts, updating the firewall and reviewing its configuration.

Is the solution able to grow with the company?

The firewall should accommodate additional employees, devices, locations and services without requiring the entire environment to be rebuilt whenever the business expands.

A firewall should not be treated as a box that is installed once and forgotten in a cupboard.
It needs to be selected according to the company’s requirements, configured correctly and reviewed as the business grows. Security rules should support the way employees work while lessening unnecessary exposure to threats.

Ativo ICT provides business firewall solutions that help protect networks against cyber risks, unauthorised access and security risks.

The Ativo team can assess your network, recommend an appropriate solution and incorporate firewall protection into a wider business IT strategy.

This may include:

• Firewall supply and installation
• Security configuration
• Network assessment
• Secure remote access
• Network monitoring
• Data protection
• Connectivity
• Ongoing business IT support

The objective is not simply to install more technology. It is to provide a security solution that supports your employees, protects your systems and allows the business to operate with confidence.