Managed Firewall Service
- Expert Configuration and Management
- Formalised Change Control
- Continuous Monitoring and Firmware Management
Data Defence’s Managed Firewall Service provides expert configuration, ongoing monitoring, and formalised change management for your next-generation firewall estate — ensuring your perimeter remains secure, compliant, and aligned to your evolving risk profile.
Managed Firewall and Perimeter Security
A firewall is only as effective as its configuration. Overly permissive rules, outdated firmware, undocumented changes, and absence of regular review are among the most common root causes of perimeter security failures — and among the easiest to address with proper management.
Data Defence takes full management responsibility for your firewall estate. We configure rules in line with the principle of least privilege, maintain firmware and software at current supported versions, and apply a formalised change management process to every rule modification — ensuring that every change is documented, justified, peer-reviewed, and reversible.
Continuous monitoring provides visibility of traffic patterns, blocked threats, and anomalous activity. Regular rule reviews identify redundant, conflicting, or overly permissive entries. Monthly reporting provides clear oversight of firewall health, change history, and any recommendations for improvement.
The service covers next-generation firewalls from leading vendors and can be extended to include web application firewalls, DNS filtering, and network segmentation advisory as your environment requires.
Why Choose Data Defence
Firewall management is technically demanding and operationally continuous. Rules accumulate. Firmware needs patching. Changes made under pressure leave undocumented exceptions. Data Defence provides the structured, expert management that keeps your perimeter effective — with the accountability and audit trail that good governance requires.
Your perimeter, properly managed.
A firewall estate that is configured once and left is not a managed security control — it is a decaying one. Data Defence provides ongoing, expert management with formalised change control, continuous monitoring, and regular review — ensuring your perimeter defences remain effective as your environment and the threat landscape evolve.
Related case studies.
- Deployed a fully managed SOC
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- Developed a full Cyber Incident Response Policy, Plan, and Procedure
- Created technology-specific playbooks tested through live tabletop exercises
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- Built a template framework enabling the client to author future playbooks independently