Network Security UK
Network security for UK SMEs — firewall ruleset review, network segmentation, VPN hardening, and network access control. We find the open paths, over-permissive rules, and missing segmentation that attackers exploit. Fixed-scope review. No hourly overruns.
Fixed
Network review from
100+
Firewall rules typically audited
2 wks
Typical delivery
0
Hourly overruns
Cybersecurity Consulting + 24/7 SOC Monitoring
Every Gridisys engagement is built on two pillars — strategic consulting to design the right controls, and managed SOC monitoring to keep them effective.
Cybersecurity Consulting
UK consulting engagements: risk assessment, security architecture, conditional access design, compliance (Cyber Essentials, UK GDPR, FCA PS21/3, NIS2), incident-response planning. Board-ready documentation, no jargon, no surprise invoices.
- Risk assessment + security architecture review
- Conditional access + Entra ID hardening design
- Cyber Essentials / UK GDPR / FCA / NIS2 compliance support
- Incident response planning + tabletop exercises
- Vendor + supply-chain security assessment
- Board / DPO reporting + evidence pack
Managed SOC Monitoring · 24/7
AI-augmented Security Operations Centre — continuous monitoring across Microsoft 365 / Entra ID, Defender, on-prem, and cloud. UK-based analysts, sub-hour triage on critical alerts. No long contract required.
- 24/7 SIEM monitoring — Microsoft 365, Entra ID, Defender, Azure, on-prem logs
- BEC + mailbox-compromise + OAuth grant abuse detection
- Suspicious sign-in + conditional access drift alerting
- Ransomware + lateral-movement detection from EDR + Defender
- Sub-hour triage on critical alerts, monthly ops report
- Optional + integrated with consulting engagements
Most engagements start with consulting (1-2 weeks), then SOC monitoring (ongoing ) keeps the controls effective.
Pricing tailored to your needs
Every engagement is scoped to your environment and requirements. Book a free consultation for a tailored quote — no obligation.
What we cover
Practical, board-ready consulting — no jargon, no surprise invoices.
Firewall Ruleset Review
We audit your firewall rules for over-permissive entries, unused rules, shadow rules, and open ports — and recommend a clean, least-privilege ruleset.
Network Segmentation
We design and implement network segmentation — isolating admin accounts, guest networks, IoT, and sensitive data zones.
VPN Hardening
We review and harden your VPN configuration — MFA enforcement, split-tunnelling, client posture checks, and legacy protocol removal.
Network Access Control (NAC)
We design NAC policies — only compliant, authenticated devices can access corporate resources.
Wireless Security
We test and harden your Wi-Fi — WPA2/3 enterprise, guest isolation, rogue AP detection, and credential capture resistance.
Internet-Facing Exposure
We map your internet-facing assets — open ports, exposed services, and public IPs — and recommend closing unnecessary exposure.
How we work
Scoping call (30 min)
We identify your network topology, firewalls, and compliance drivers. Fixed price agreed.
Review (1-2 weeks)
We audit firewall rules, segmentation, VPN, and exposure. Board-ready report with prioritised remediation.
Remediation (optional)
We implement the fixes on a fixed-price basis — or hand off to your network team.
Sectors we protect
Find the open paths in your network
Fixed-scope network security review — firewall, segmentation, VPN, and exposure.
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