NIS2 Directive and OT Security: impacts, requirements and solutions
The Impact of NIS2 on OT Security
The NIS2 Directive marks a turning point for cybersecurity across Europe. Until just a few years ago, protecting IT infrastructures was considered enough to reduce cyber risk. Today, however, that approach is no longer sufficient.
As industrial environments become increasingly digitalized, Operational Technology (OT) systems have become a prime target for cyber attackers, making an integrated security strategy more important than ever.
For manufacturing companies and organizations that manage industrial processes, the relationship between NIS2 and OT Security has become a fundamental pillar of cybersecurity governance.
How does NIS2 impact OT Security?
The NIS2 Directive expands the number of organizations subject to cybersecurity obligations while introducing a risk-based approach to security management.
Security measures can no longer focus solely on servers, workstations, and digital services. They must also include production facilities, industrial control systems, and OT networks that ensure business continuity.
This means organizations need complete visibility into their OT assets, continuous monitoring of their security posture, and incident detection and response procedures capable of protecting both IT and OT environments simultaneously.
Operational Technology and industry standards
Operational Technology (OT) includes the hardware and software used to control machinery, production lines, PLCs, SCADA systems, and other critical industrial infrastructure.
Unlike traditional IT environments, where data confidentiality is often the primary concern, OT environments prioritize system availability and operational continuity.
A production outage can lead to significant financial losses while also putting worker safety at risk.
For this reason, the internationally recognized IEC 62443 standard serves as the primary framework for securing industrial automation systems. It defines both technical and organizational requirements, including network segmentation, access control, continuous monitoring, and the adoption of a security-by-design approach.
Key OT Security requirements under NIS2
The NIS2 Directive introduces several cybersecurity measures that are particularly relevant to OT environments.
Among the most important are:
- Extending cyber risk management to industrial facilities
- Continuous inventory and monitoring of OT assets
- IT and OT network segmentation
- Vulnerability management and production-compatible patching strategies
- Early detection of security incidents
- Business continuity and disaster recovery planning
- Supply chain monitoring and oversight of third-party vendors with access to critical systems and data
The ultimate goal of NIS2 is not simply to reduce the likelihood of cyberattacks, but to strengthen the overall resilience of the organization.
Beyond Compliance: the strategic benefits for industrial operations
Viewing compliance as nothing more than a regulatory requirement means missing a valuable opportunity.
Investing in OT Security helps organizations reduce production downtime caused by cyber incidents, improve equipment availability, and detect anomalous behavior before it disrupts operations.
Continuous monitoring of industrial environments also simplifies security audits, improves collaboration between IT and OT teams, and enables faster, more informed decision-making during incident response.
In this context, NIS2 and OT Security become complementary elements of a broader strategy focused on operational resilience.
SGBox for OT Security: an integrated security-by-design approach
Protecting industrial environments requires more than simply deploying new security tools. Organizations need a platform capable of correlating events across both IT and OT environments to provide a unified view of cyber risk.
SGBox was built around exactly this philosophy. By integrating Log Management, SIEM, and SOAR capabilities into a single modular, proprietary platform, SGBox enables organizations to:
- Collect logs within an ACN-certified European Cloud environment
- Centralize security data
- Monitor security status in real time
- Respond rapidly to security incidents
- Monitor vulnerabilities and the external attack surface
- Gather compliance evidence through comprehensive security reports and audit documentation
By combining technology, processes, and expertise, SGBox enables organizations to implement a true security-by-design model, where cybersecurity is built into the infrastructure from the very beginning and supports every stage of its lifecycle.
With SGBox, compliance with the NIS2 Directive becomes more than a regulatory obligation, it becomes an opportunity to strengthen OT security, improve operational resilience, and build a truly integrated cybersecurity strategy.