3 Must-Haves for a NIS2-Compliant Network

The NIS2 Directive (Network and Information Security Directive 2, based on ISO 27001) represents a significant overhaul of EU-wide cybersecurity legislation in nearly a decade. Replacing the original NIS Directive of 2016, it substantially expands the scope of regulated entities, raises the bar for compliance, and introduces far more stringent obligations around risk management, incident handling, governance, and operational resilience.

Below are the three foundational capabilities modern networks must be built on to meet these expectations: assessment, detection, auditing.

A NIS2-compliant network starts with full awareness of what it is protecting. For this first step, you have to answer the question: what are the risks I could face?

The directive explicitly requires organizations to implement risk management measures based on an “all-hazards” approach, covering technical, operational, and organizational risks across the entire network ecosystem.

This includes maintaining an up-to-date view of assets, dependencies, and exposure points, as well as continuously evaluating risks as systems evolve. In practice, this shifts security from periodic audits to ongoing assessment.

Equally important is prioritization. NIS2 expects organizations to assess risks based on likelihood, severity, and business impact, ensuring that mitigation efforts are aligned with operational reality rather than theoretical models.

Think of it like a building manager who needs to know not just how many doors exist, but which ones are locked, which keys are in circulation, and which entrance a burglar would most likely use. A static floor plan reviewed once a year is not enough, the building changes, and so does the threat.

Without this continuous visibility, risk management becomes fragmented, and difficult to demonstrate under regulatory scrutiny.

When something goes wrong, time is everything. NIS2 sets strict deadlines: how fast does action need to be taken?

Organizations must report a significant incident to authorities within 24 hours of discovering it, with a full formal notification due within 72 hours. Miss those windows, and the compliance problem becomes bigger than the incident itself.

This means having monitoring tools that watch the entire network continuously, not just the perimeter, and flag anomalies the moment they appear.

Organizations also need a clear response plan: who gets called, who makes decisions, who notifies regulators, and in what order. That plan needs to be written down and tested before a crisis hits, not improvised during one.

As already mentioned, no security plan remains effective without continuous adaptation. NIS2 reflects this reality by pushing organizations to treat every disruption as an opportunity to improve.

Think of it like a post-match debrief in a sports team. Winning or losing matters less than understanding why, and using that understanding to perform better next time.

So, when an incident occurs, it's important to understand:

• what happened,
• why it happened,
• and where the response fell short.

This requires structured post-incident analysis, covering root causes, response timing, decision-making processes, and any gaps in visibility or coordination.

In practice, every incident – whether a cyberattack, a system failure, or a breach originating from a supplier – should trigger a review process. The outcome is not documentation for its own sake, but actionable insight:

• updated procedures,
• refined risk assessments,
• and, where necessary, adjustments to the network architecture.

Over time, this creates a continuous feedback loop. Each disruption becomes an input to strengthen the system, improving detection, response, and overall resilience in a measurable way.

This approach must also extend beyond internal systems. If a third party becomes the entry point of an incident, it signals the need to reassess access conditions, monitoring capabilities, and trust relationships across the supply chain.

Organizations that manage crises effectively are not those that avoid them entirely, but those that systematically learn from them. In this model, every incident contributes to building a more resilient and controlled network environment.

This is where many organizations get stuck. The requirements are clear, but the path to meeting them is not always obvious, and it looks different depending on the organization's size, sector, and starting point. That said, a few foundational steps apply almost universally.

It starts with visibility. Before anything else, organizations need a clear and continuous picture of everything connected to their network: IT systems, devices, industrial equipment, third-party integrations. Without that baseline, identifying risks and prioritizing action is guesswork.

From there, the work becomes concrete. Put a real plan in place: defining which risks matter most, assigning clear ownership over each one, and building specific procedures for how to prevent, detect, and respond to incidents. Plans that live in a shared folder without named owners tend to stay there, accountability is what turns documentation into practice.

Training is part of this too. Not as a one-off exercise, but as an ongoing investment in the people who will actually have to execute under pressure.

None of this has to be done alone. For many organizations – especially those without a dedicated security function – working with an external partner is a sensible choice. The right partner can accelerate the process, fill gaps in expertise, and provide the operational coverage that an internal team cannot always sustain around the clock.

What matters most is the mindset. NIS2 compliance is not a certification you earn once and file away. It is an ongoing operational commitment, one that requires the right tools, the right people, and a willingness to treat security not as a cost center, but as a condition for doing business.

Modern network environments require more than layered security tools. They require architectures where control, visibility, and protection are embedded directly into the network itself.

NGCI is a standalone private network architecture, operating independently from public infrastructure. Being a tailor-made solution for each customer and largely developed in-house, it benefits from a short and controlled supply chain. This reduces external dependencies and significantly limits the attack surface by keeping communications within a controlled, dedicated environment. In other words, the digital perimeter is less exposed and the risk of breaches is reduced.

On top of this foundation, an AI-based monitoring and control layer continuously analyzes network behavior in real time, aligning with a state-of-the-art cybersecurity posture. This enables the early detection of anomalies, deviations from normal patterns, and potential threats as they emerge. The result is a higher level of situational awareness, faster identification of intrusions and compromises, and improved operational control across the entire network.

This combination of architectural isolation and intelligent monitoring directly supports key NIS2 requirements, particularly in terms of risk management, incident detection, and operational resilience. It helps organizations move toward a more controlled and observable network environment, where security is not an external layer but an intrinsic property of the architecture.

At the same time, NIS2 compliance is a multi-layered challenge that extends beyond the network itself, involving governance, processes, and organizational practices. In this context, NGCI represents a critical building block within a broader compliance strategy, strengthening the network foundation on which those additional capabilities rely.

Organizations that take this seriously, embedding visibility, response, and resilience into the architecture of their networks rather than layering them on top, will be far better positioned to operate securely, maintain trust with regulators and customers, and absorb the growing operational and regulatory pressures that define today's cybersecurity landscape.

Contact us at info@sma-rty.com to learn more about how NGCI can support your path to NIS2 compliance.