European automotive plants and logistics operators are accelerating legacy OT modernization programs anchored on open, vendor-agnostic standards as enforcement of the EU's NIS2 Directive intensifies pressure on industrial control system (ICS) security. The shift is reshaping procurement decisions, integration architecture, and supplier governance across some of the continent's most OT-intensive sectors.
Background
The NIS2 Directive (EU 2022/2555) came into force in January 2023, with EU member states required to transpose it into national law by 17 October 2024. The directive formally identifies motor vehicle manufacturing and transport equipment manufacturing as critical sectors subject to its requirements. Transport and logistics-including road, rail, maritime, and air operators-are designated as essential entities under Annex I, subjecting them to proactive regulatory supervision rather than post-incident audits alone.
Germany's NIS2 implementation act entered into force on 6 December 2025, with essential and important entities required to register with the Federal Office for Information Security (BSI) by April 2026. The European Commission has launched infringement proceedings against member states that missed the transposition deadline, signaling firm enforcement intent. Non-compliant essential entities face administrative fines of up to €10 million or 2% of global annual turnover, whichever is higher, and management bodies are personally accountable for governance failures.
As of 2025, detailed NIS2 security requirements have been published by several EU member states, with implementation actively underway across critical sectors, according to Rockwell Automation. The ENISA NIS360 2024 report found that cybersecurity maturity levels remain uneven across in-scope sectors, with transport and manufacturing entities struggling particularly with legacy OT system integration and post-incident response capabilities.
Details
The NIS2 framework imposes specific technical obligations that directly affect OT environments. Companies must submit an initial incident notification within 24 hours, a detailed report within 72 hours, and a final report within 30 days of identifying a security incident. According to Schneider Electric, meeting these windows is "practically impossible using only manual audits," because legacy OT systems were built for availability rather than logging or alerting-making continuous automated monitoring a compliance prerequisite rather than an optional upgrade.
This operational gap is accelerating adoption of open communication standards such as OPC UA (Open Platform Communications Unified Architecture) and ISA/IEC 62443, which establish vendor-agnostic security baselines and interoperability frameworks. VDMA-the largest industrial association in Europe-lists OPC UA as "a key prerequisite for the successful introduction of Industry 4.0 into production", and the standard ensures machine-to-machine connectivity independent of manufacturer or platform. For retrofit programs on legacy automotive lines, OPC UA gateways enable real-time data visibility without full equipment replacement, reducing integration risk and unplanned downtime.
NIS2 stresses the use of international standards, with ISA/IEC 62443 identified as a key cybersecurity standard for designing secured industrial automation and control system (IACS) infrastructures, according to Cisco. Organizations holding existing ISA/IEC 62443 certification are considered well-positioned for NIS2 alignment. The European industrial certification scheme under development is expected to derive from ISA/IEC 62443.
Supply chain governance ranks among the directive's most demanding provisions for OEMs and integrators. NIS2 places direct and indirect obligations on every level of the automotive supply ecosystem, from Tier 1 to Tier 3 suppliers and beyond, according to PECB. OEMs are requiring cybersecurity questionnaires during vendor onboarding, incorporating audit rights into contracts, and mandating incident notification service-level agreements. Suppliers that cannot meet the new standards may no longer be viable business partners, risking exclusion from future procurement cycles.
For logistics operators, the exposure is compounded by the density of digitally dependent processes. Modern warehousing relies on Warehouse Management Systems (WMS), Transport Management Systems (TMS), IoT tracking devices, and automated conveyor and sorting systems-all of which fall within NIS2's OT scope. Non-compliance in the logistics sector may result in exclusion from public tenders for organizations dependent on public contracts or multinational clients, according to Escrow4All. Logistics organizations with more than 50 employees or annual turnover exceeding €10 million are more likely to fall within NIS2 scope.
One European food and beverage manufacturer that deployed centralized OT monitoring and structured incident response protocols reported a more than 40% improvement in threat detection and response times, according to Schneider Electric. The result reduced production disruption risk while providing measurable compliance evidence to regulators.
Outlook
As of October 2024, national authorities began identifying critical entities and reviewing their risk management processes, with physical and cyber resilience plans subject to regulatory review. Further EU cybersecurity measures, including expanded vendor certification requirements under the Cyber Resilience Act (CRA), are expected to deepen OT security obligations through 2026 and 2027. Industry practitioners estimate that basic NIS2 compliance programs require 12-18 months to implement, while comprehensive enterprise-level OT security maturity programs take 18-36 months-placing firms starting now in a race against tightening enforcement timelines across key manufacturing economies.
