Think of this as your business’s security guard – checking everyone who comes in and out of your digital door. But this one works 24/7, makes smart decisions in milliseconds, and never takes a break. We’ll set up and manage your firewall to keep the bad traffic out while making sure your team can work without interruption.
A managed firewall service provides expert oversight of your firewall infrastructure – the critical security boundary between your trusted internal network and the untrusted outside world. Unlike a traditional firewall that simply sits in place, a managed firewall is continuously monitored, optimised, and maintained by security experts who ensure your protection remains effective against cyber threats.
Modern next-generation firewall technology does much more than simply block unwanted traffic. These sophisticated systems provide comprehensive Unified Threat Management (UTM), using a layered defence approach to inspect all data entering and leaving your network, ensuring only legitimate network traffic passes through while blocking potential threats.
Most businesses seeking improved firewall security share similar challenges:
Managed Firewall Services – Lumina Technologies
Today a traditional firewall approach is no longer enough. Our managed firewall service provides comprehensive protection that works even when your team makes innocent mistakes:
Our security experts actively monitor your network traffic 24/7, establishing what normal patterns look like for your business so that unusual activity can be quickly identified and addressed – even during those Monday morning rushes when your team might be less vigilant.
Not all internet traffic is created equal. Our managed firewall services ensure your critical business applications get the bandwidth they need while less important traffic is appropriately prioritised.
Modern cyber threats require modern defences. Our managed firewall provider implements multiple security layers to protect your business from various attack angles:
Understand how your network is being used and what threats are targeting your business:
Many firewalls are installed but never properly configured or optimised. Our approach as a managed firewall provider is different:
We don’t wait for problems to occur – we actively manage your firewall security to prevent issues before they impact your business:
We understand that security must enable business, not hinder it:
Your firewall needs evolve as your business grows and your security posture matures:
Basic Security Foundation: Establishes core firewall protections with basic configuration, essential traffic filtering, and policies to block common threats.
Baseline Security Practices: Introduces smarter firewall capabilities with detailed traffic management, system integrations, and early threat detection.
Premium Security Enhancements: Adds advanced features like deep packet inspection, proactive threat prevention, and intelligent traffic analysis.
Enterprise Security Leadership: Delivers top-tier protection with custom rules, intrusion detection systems, risk-based controls, and in-depth security analytics.
We’re not like other service providers in the industry. Here’s what makes us different:
Network Security Expertise: Our team of security experts stays ahead of evolving cyber threats, ensuring your firewall infrastructure remains effective against new attack methods.
Business-First Approach: We understand that security must support your business operations, not hinder them. Our firewall management services balance protection with productivity.
Proven Track Record: For over 25 years, we’ve protected businesses like yours from evolving cyber threats. We’ve seen attack patterns change and develop, and we’ve continuously adapted our approach to stay ahead.
Service That Shows We Care: When security alerts happen, you need a responsive team that understands the context of your business. Our award-winning support ensures you’re never left wondering about a potential threat.
The Perfect Size: We’re big enough to have deep security expertise but small enough that you’ll know your security team by name. No generic responses or cookie-cutter solutions—just real protection tailored to your business.
Let’s discuss how our managed firewall services can provide the protection your business needs while supporting your operational efficiency.
A firewall is a vital part of your business’s cyber defences. It monitors and filters all traffic entering and leaving your network, based on a set of security rules. In practice, it acts as a gatekeeper between your internal systems and the outside world (such as the internet), helping to block threats and control access.
Most businesses today use next-generation firewalls (NGFWs), which go beyond basic filtering. These advanced systems can inspect data in more detail, spot malicious behaviour, and enforce business policies to keep your systems secure.
Firewalls can be deployed as physical devices, cloud-based services, or virtual appliances — and at Lumina, we manage them all for you.
A firewall helps prevent unauthorised access to your systems while still allowing legitimate business traffic to flow freely. It:
Modern firewalls can also block traffic from high-risk geographic regions, identify risky applications, and apply rules based on the user, device, or time of day.
Firewalls inspect data as it travels in and out of your network. This data moves in small units called ‘packets’, and each packet is analysed against your firewall’s rules. These rules decide whether to allow or block the packet.
There are several ways a firewall makes these decisions:
Most business firewalls use a “default deny” approach — blocking all traffic unless a rule explicitly allows it. This minimises risk and helps maintain a strong security posture.
The firewall’s primary role is to create a secure boundary between your business systems and external threats. It helps:
Firewalls are also a requirement for meeting key standards such as Cyber Essentials — a must-have for many UK organisations working with government or regulated clients.
A managed firewall means you don’t need to worry about configuring or maintaining your own firewall — Lumina takes care of it for you.
We provide a fully managed service which includes:
With a managed firewall, you benefit from enterprise-grade protection without needing in-house expertise. You get peace of mind knowing your network is protected and compliant – and that if something unusual happens, we’ll be on it straight away.
Yes — a properly configured firewall plays a key role in helping your business meet its compliance obligations.
In the UK, data protection regulations such as the General Data Protection Regulation (GDPR) require businesses to take appropriate technical measures to safeguard personal data. A firewall helps you meet these requirements by controlling and logging access to your systems, and by helping to prevent unauthorised access.
Firewalls are also a core requirement for achieving Cyber Essentials and Cyber Essentials Plus certification — the UK government-backed scheme that shows your business takes cyber security seriously. Under the scheme, you must have a firewall in place at the boundary between your network and the internet, and it must be securely configured and regularly updated.
At Lumina, we help our clients configure their firewalls in line with Cyber Essentials requirements. As part of our managed firewall service, we ensure the settings support your compliance goals and provide the necessary documentation and logging needed during certification.
Whether you’re pursuing certification or simply want assurance that your network is secure and standards-compliant, our team can help you get there.
Lumina Technologies has been Salamander Energy plc’s IT provider since start-up in 2005 and has supported us in London during our expansion across operational offices in SE Asia. Their professional approach, strategic advice and close co-operation have been essential in making this a success.
John Bell
Group Technical Director, Salamander Energy plc
It has been a great pleasure working with Lumina Technologies over the past two years. They have fully committed to being involved in the local community with volunteering and with professional advice and commitment, helping many local charities along the way. As a growing company it proves that being involved in the local community is helping them attract and retain a talented workforce and I look forward to working with them well into the future.
Cindy Withey
Connect Dacorum
The Vita Group HQ staff have worked with Richard McBarnet and Lumina Technologies for over 9 years, with Lumina providing all our PC, server, phone, and software support. The services have included C-level executives based in London, Manchester, the US, as well as supporting home office IT as well. The service provided and intellectual capabilities are outstanding and we would highly recommend Richard and his Lumina team.
Joe Menendez
CEO, The Vita Group
We’ve been so well supported by Paige and the Lumina team. They’ve been highly professional, very responsive, friendly, supportive. It’s really validated the decision to engage an IT partner, and we’re glad it’s with Lumina.
Bruce Storey
Chief Operating Officer, Estu Global Ltd
Society Limited has been supported by Lumina Technologies since our earliest start-up phase. From large logistical challenges like an office move, through to smaller fiddly issues like fixing a faulty e-template, we know we can count on their support and advice. They’ve also been able to engage with us strategically on the challenge of scaling-up our infrastructure as the firm continues to grow and evolve. We always feel confident going to Lumina with a problem, since we know they genuinely care about sorting things out and helping us to get on with our core business.
Simon Lucas
Managing Director, Society Limited
Lumina Technologies have taken the time to understand the requirements of our business and work as our strategic IT partner, enabling us to concentrate on delivering a high quality service to our clients and focus on our growth strategy. They have delivered a 100% cloud solution to our business with no underlying infrastructure costs or maintenance, which gives us scalability for our planned growth. It also means our business critical applications and data are securely accessible from virtually all our user devices. Lumina’s professional approach and strategic expertise is highly valued and their management of our IT – based on their in-depth knowledge, leaves us confident that our systems are available 24×7.
Luke Harrison
Keidan Harrison LLP
Richard and his team are a real inspiration to anyone who meets them and I have watched Lumina’s growth over the last few years with interest and admiration. Richard has been an amazing supporter of the Hospice of St Francis, being a Gold member of the Corporate Partner Network for almost two years. He takes an active interest in the community and is passionate about his company and his town: nothing is too much trouble, he is always willing to help, to give up his time and to provide business advice when asked. Lumina is an inspiration to any company wanting to set up business in Hertfordshire.
Carolyn Addison
Corporate Fundraising Manager, The Hospice of St Francis
Hawkstone Management Services Ltd is a small company for which IT Outsourcing is realistically the only viable option. Lumina Technologies have successfully performed this role for over fifteen years. They also provide innovative solutions to keep pace with technological progress. I would have no hesitation in recommending Lumina to similar sized businesses.
Stephen Pembury
Hawkstone Management Services Ltd
The team at Lumina Technologies have made the Amoun Travel & Tours office IT transition seamless and problem free. The office set-up has been vastly improved and the IT Support services are flawless. No issue goes unresolved, which is extremely reassuring.
Adam Helmy
Amoun Travel & Tours Ltd
