From 2027 cybersecurity becomes a fundamental requirement of the machinery regulation. This explains what manufacturers must prepare now for CE conformity and development processes.
Ab dem 20 January 2027 must every manufacturer who places machines on the EU market demonstrate protection against corruption, because this protection becomes a basic requirement for the CE mark. This shifts what a machine must meet to be marketable. Why this step was necessary becomes clear from a look at the previous legal situation.
The Machinery Directive 2006/42/EC was created at a time when machines largely operated in isolation. Controls were proprietary, network connections were the exception, and software played a subordinate role in safety considerations. Accordingly, the directive contained no requirements for protection against digital threats.
The reality in mechanical engineering today looks different. Machines are networked, maintained via remote access, receive software updates over the internet and exchange data with higher-level systems. This connectivity creates attack surfaces that must be taken into account in design and conformity assessment.
The Machinery Regulation responds to this with two new security-relevant basic requirements in Annex III. Section 1.1.9 (“Protection against corruption”) requires that connecting another device or remote access must not lead to a hazardous situation. Safety-relevant hardware, software and data must be protected against unintentional and intentional corruption, and software installed for safe operation must remain identifiable. Right next to it is section 1.2.1 (“Safety and reliability of control systems”): controls must withstand both intentional and unintentional external influences, explicitly including reasonably foreseeable malicious attempts by third parties. In this way digital attack defence is anchored in the basic requirements in two places.
Why the CE mark becomes a security proof
Until now, it was sufficient for CE marking to demonstrate the mechanical, electrical and functional safety of a machine. Cybersecurity was not part of the conformity assessment. The Machinery Regulation changes that fundamentally.
Since protection against corruption is now a basic requirement in Annex III, it must be demonstrated in the technical documentation like any other basic requirement. Without this proof the declaration of conformity remains incomplete, and market access in the EU is jeopardised. Those who have treated cybersecurity as an afterthought must now bring it into the regular product development and conformity process.
Which standards specify the implementation
The Machinery Regulation formulates requirements for protection against corruption at a general level. Harmonised standards will play a central role in concrete implementation.
The most important standard in this context is EN 50742, currently published as draft prEN 50742. It was conceived specifically for the Machinery Regulation and defines requirements for the protection of machines against corruption. The standard provides two implementation approaches: a standalone approach (approach A) with specific requirements directly from the standard and an approach based on IEC 62443 (approach B) that draws on the established standard series for industrial cybersecurity.
The IEC 62443–based approach is particularly relevant for many manufacturers who already have experience with that series or whose customers set requirements from IEC 62443. IEC 62443-4-1 defines the requirements for the secure development process (secure product development lifecycle) and divides it into eight practice areas, from requirements definition to vulnerability handling. IEC 62443-4-2, by contrast, describes technical security requirements for components. Both parts can serve as the basis for conformity evidence within EN 50742.
It is not yet certain whether EN 50742 will be listed as a harmonised standard in the Official Journal of the EU in time for the regulation�s entry into force in January 2027. Regardless, it already provides reliable guidance for implementing the cybersecurity requirements.
Why manufacturers must act now
20 January 2027 may sound like plenty of time. For introducing cybersecurity processes into product development, however, the timeframe is tight. Building a secure development process and anchoring it in the technical documentation takes lead time, especially if these topics have not been systematically addressed so far.
There are several reasons to start early. Cybersecurity cannot be retrofitted onto a finished product; it must be considered from the concept phase, and that requires methodology and know-how in the development team. In addition, machines often go through long development cycles. Products that are being designed today and are intended to come to market in 2027 or later must already take the new requirements into account.
The Machinery Regulation is not the only European regulation imposing cybersecurity requirements on products. The Cyber Resilience Act and the NIS-2 directive set additional requirements that partly overlap and complement each other. Those who now build a solid foundation for their cybersecurity processes will be prepared not only for the Machinery Regulation but also for the broader regulatory environment. How the Machinery Regulation and the Cyber Resilience Act interlock in detail is addressed separately under CRA and machinery regulation.
What this change means for product managers
The paradigm shift brought by the Machinery Regulation affects more than just the development department. Product managers must understand cybersecurity as a fixed component of product requirements. Risk assessment, previously primarily a domain of functional safety, must be expanded to include the dimension of digital threats. And the technical documentation must demonstrably show how protection against corruption was implemented.
For manufacturers without structured cybersecurity processes in product development this is a significant change. It is not a single feature or an additional test at the end of development, but the integration of security across the entire product lifecycle.
Those who start now will be ready in 2027
The normative basis for implementation is taking shape with EN 50742. Via its IEC 62443 path manufacturers have an established and proven route to demonstrate the required protection against corruption.
The decisive point is lead time. Setting up a secure development process cannot be done overnight, and machines with long development cycles must carry the requirements already in the concept phase. Those who start now to establish their development process have the necessary leeway until January 2027 and at the same time build a solid foundation for the broader European product law.
Machinery regulation and cybersecurity in practical terms
If you want to understand what the new basic requirements mean for your products and where to start, this can be clarified in a non-binding conversation.
