The EU's NIS2 Directive has moved from transposition deadline to active enforcement, placing direct operational technology (OT) cybersecurity obligations on automotive component manufacturers and logistics providers operating within the European single market. Non-compliance now carries fines of up to €10 million or 2% of global annual turnover, whichever is higher.
The NIS2 Directive entered into force in January 2023, marking a decisive shift in how digital risk is governed across critical sectors, including transport and automotive manufacturing.1NIS2 requirements: A complete guide to compliance & implementation EU Member States had until October 17, 2024, to transpose the directive into national law, with NIS2 formally repealing its predecessor from October 18, 2024. In Germany - home to Europe's largest automotive manufacturing base - national implementation entered into force on December 6, 2025, with registration and reporting conducted via the BSI portal, activated at the beginning of 2026.
Background
NIS2 (Directive (EU) 2022/2555) took effect in late 2024, establishing a new benchmark for cybersecurity across Europe's critical sectors. For manufacturers of high-risk products - including industrial machinery, medical devices, and automotive components - the directive explicitly expands its scope to cover both IT systems and operational technology.
A defining feature of NIS2 is its emphasis on the supply chain: it does not merely target OEMs but places direct and indirect obligations on every level of the supply ecosystem, from Tier 1 to Tier 3 suppliers and beyond.2NIS2 Compliance: Requirements, Enforcement & Checklist | N2W The directive also underscores the importance of strengthening cybersecurity in the transport sector, with transport operators, manufacturers, suppliers, and the broader transport ecosystem classified as highly critical due to their significance to the EU's economy and stability.
Companies fall within scope if they meet relevant sectoral definitions and exceed specific size thresholds - typically medium-sized enterprises and above, with more than 50 employees and €10 million in annual turnover. Covered organizations are classified into two categories: essential and important entities. Essential entities face fines of up to €10 million or 2% of global annual turnover, whichever is higher, while important entities face penalties of up to €7 million or 1.4% of global annual turnover, whichever is higher.
Details
Manufacturers must implement continuous risk management processes tailored to OT environments. These include identifying vulnerabilities in both legacy and modern systems, maintaining a detailed inventory of devices and data flows, and deploying controls such as network segmentation and anomaly detection.
Incident reporting timelines are now strictly defined. Organizations must issue an early warning within 24 hours of becoming aware of a significant incident, submit a detailed incident notification within 72 hours, and provide a final report within one month.
Executive accountability is a core enforcement mechanism. Company directors can be held personally liable for non-compliance, with potential sanctions and mandatory corrective action. Penalties can include administrative fines against individuals or even temporary bans from management functions for CEOs and other senior executives in cases of gross negligence.
On the supply chain side, the requirement for in-scope entities to ensure the security of their immediate supply chain may prove one of the most exacting and time-consuming elements of NIS2 compliance. It could require renegotiation of supplier contracts, enhanced due diligence, and, in some cases, replacement of suppliers whose cybersecurity standards fall short.
OT environments present particular challenges. They consist of heterogeneous devices, real-time control loops, and proprietary protocols - many of which were not originally designed with cybersecurity in mind. Manually modeling threats across such diverse systems is both time-consuming and error-prone, yet NIS2 requires manufacturers to anticipate and mitigate risks during the design phase across the entire product and operational lifecycle.
To address these technical demands, industry frameworks provide a structured path to compliance. Implementing the ISA/IEC 62443 cybersecurity framework - especially parts 2-1, 3-2, and 3-3 - covers most of NIS2's key requirements, including risk analysis, access control, strong authentication, cryptography, continuous monitoring, and business continuity. Notably, NIS2 envisions a European certification scheme, currently under development for industrial infrastructures, that will likely be based on or derived from ISA/IEC 62443. Automotive-specific suppliers may additionally reference ISO/SAE 21434, which maps directly to vehicle cybersecurity engineering requirements and is cross-referenced in NIS2 compliance guidance for the sector.
Protecting OT systems in production environments remains a significant challenge because they often run on legacy hardware and operating systems past end of support, leaving them vulnerable to malware yet too outdated to support modern security measures. Dedicated OT training programs - covering threat identification, incident escalation procedures, and secure remote access - are increasingly viewed as a foundational requirement alongside technical controls, particularly for plant-floor personnel operating industrial automation systems.
Outlook
On January 20, 2026, the European Commission proposed targeted amendments to the NIS2 Directive to increase legal clarity, simplify compliance with EU cybersecurity rules, and ease the burden for 28,700 companies, including 6,200 micro and small-sized enterprises. As of 2026, all EU Member States have integrated NIS2 into their local legislative frameworks, with national competent authorities actively conducting audits and inspections. For automotive and logistics suppliers that have not yet completed a formal NIS2 gap assessment, the window for proactive remediation is narrowing as enforcement activity accelerates across member states.
Also see: EU Strengthens OT/ICS Cybersecurity under NIS2 Expansion
