Mapping of NIS2

Cyber resilience starts with network control

Regulated and essential services organisations across the UK, Ireland, and Europe are under growing pressure to evidence that security controls are working. NIS2 is raising the bar for EU organisations, and UK cyber resilience reform is moving in the same direction.

Cyber resilience is becoming a board-level and operational priority

Regulators are placing greater emphasis on continuous oversight, risk-based controls, governance, and evidence that security controls are working. For network and security teams, this makes firewall policy management especially important.

If rules are outdated, overly permissive, unused, redundant, or difficult to evidence, they can create operational risk and compliance friction — exactly where audit and leadership attention is now focused.

Where network policy risk hides

Policy complexity Firewall rules build up over time, making it harder to see what is necessary, risky, or outdated.
Overly permissive access Broad access can increase exposure across critical systems and sensitive environments.
Change risk Firewall changes can introduce risk if they are not reviewed and validated before implementation.
Segmentation misalignment Controls can become misaligned as environments change across cloud, hybrid, and on-premises networks.
Audit friction Manual reporting makes it harder to evidence control effectiveness when compliance, audit, or leadership teams ask.

Why network policy governance matters

Network security policy sits at the centre of resilience, compliance, and operational control. For organisations in regulated and essential services sectors, stronger policy governance can help teams:

Understand access across critical environments
Reduce unnecessary exposure
Validate changes before they create risk
Keep segmentation aligned as environments change
Support audit and compliance requests with stronger evidence
Prioritise remediation based on risk and business impact

How FireMon supports this

FireMon helps security teams improve visibility and governance across complex firewall and hybrid network environments.

With FireMon Policy Manager, teams can analyse policy risk, reduce rule complexity, validate changes, support continuous compliance monitoring, and maintain evidence for audit and reporting needs.

Choose your next step

Need the compliance detail? The NIS2 compliance document maps network security policy management to NIS2 readiness, risk-based controls, governance, and audit readiness. → Complete the form to download

Want the context? Read how NIS2 and DORA are driving a shift toward policy-centric security and continuous governance. → Read the Blog

Want to see how FireMon helps? View the Policy Manager datasheet to see how FireMon supports policy analysis, change validation, compliance monitoring, and firewall governance. → View the Datasheet

Ready to discuss your environment? Talk with FireMon about where firewall complexity, policy gaps, or change risk may be creating unnecessary exposure. → Talk to an Expert

“FireMon has significantly improved our visibility and control over firewall policies across global IT and OT environments.” — IT lead, Energy & Utilities