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What is a Firewall Security Review?
Firewalls are a critical control for protecting organisational networks, cloud environments, and sensitive data. However, over time firewall rules can become overly permissive, inconsistent, or misaligned with business risk, creating hidden vulnerabilities.
VMGroup provides a structured Firewall Review as a Service, helping organisations continuously assess and improve the security of their firewall configurations using trusted assessment tools and expert analysis.
How does VMGroup deliver Firewall Review as a Service?
This service can be delivered as:
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A one-off firewall security assessment, or
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An ongoing bimonthly review programme delivered over a 12-month period
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We can tailor the service to meet your businesses needs.
Regular reviews ensure firewall policies remain aligned with evolving threats, changing business requirements, and regulatory expectations.
What issues are identified during a firewall review?
Each assessment is designed to identify:
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Firewall misconfigurations and insecure rule sets
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Overly permissive access controls
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Unused, duplicate, or shadowed rules
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Gaps in segmentation and network zoning
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Inconsistent policy enforcement
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Deviations from documented security standards
This helps organisations understand where perimeter and internal network controls may be exposing them to risk.
What standards are used to benchmark firewall security?
VMGroup benchmarks firewall configurations against recognised best-practice frameworks, including:
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CIS (Center for Internet Security) Benchmarks
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NIST Cybersecurity Framework (NIST CSF)
This ensures findings are aligned to internationally recognised security and compliance expectations.
Typical use cases for Firewall Review as a Service
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Organisations seeking to strengthen perimeter security
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Preparation for ISO 27001, NIS2, or regulatory audits
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Reducing exposure to external threats and ransomware
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Improving segmentation between critical systems
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Demonstrating due diligence to customers, auditors, or regulators
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Ongoing governance for complex or rapidly changing environments
Deliverables
Following each review, VMGroup provides:
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A risk-prioritised assessment report
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Clear, actionable remediation recommendations
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Executive summary suitable for leadership and board reporting
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Evidence to support governance, audit, and compliance requirements
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Ongoing tracking of improvements across review cycles (for managed engagements)
Benefits of Firewall Review as a Service
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Improved visibility of firewall security posture
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Reduced likelihood of misconfiguration-related breaches
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Stronger alignment with recognised security frameworks
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Continuous improvement rather than one-off assurance
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Practical guidance tailored to your environment
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Supports broader cyber governance and compliance programmes