From 2027 cybersecurity becomes a basic requirement of the machinery regulation. Manufacturers must prepare now for CE conformity and changes to development processes.
For product managers, development heads and CTOs in mechanical engineering this means: Cybersecurity is no longer an optional add‑on but a regulatory prerequisite for market access in the EU.
From 20 January 2027 every manufacturer placing machines on the EU market must demonstrate protection against corruption, because this protection becomes a basic requirement for the CE mark. This shifts what a machine must fulfil to be marketable. A look at the previous legal situation explains why this step was necessary.
The Machinery Directive 2006/42/EC was created at a time when machines largely worked in isolation. Controls were proprietary, network connections were the exception, and software played a minor 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 considered in design and conformity assessment.
The Machinery Regulation responds with two new security‑relevant essential requirements in Annex III. Section 1.1.9 (“Protection against corruption“) requires that connecting another device or remote access must not lead to a dangerous situation. Safety‑relevant hardware, software and data must be protected against unintentional and intentional corruption, and software installed for safe operation must remain identifiable. Immediately next to it is section 1.2.1 (“Safety and reliability of control systems“): controls must withstand intentional and unintentional external influences, explicitly including reasonably foreseeable malicious attempts by third parties. Thus digital attack prevention is anchored in the essential requirements at two points.
Why the CE mark becomes proof of security
Until now, demonstrating a machine’s mechanical, electrical and functional safety was sufficient for CE marking. Cybersecurity was not part of the conformity assessment. The Machinery Regulation fundamentally changes that.
Because protection against corruption is now an essential requirement in Annex III, it must be demonstrated in the technical documentation just like any other essential requirement. Without this evidence the declaration of conformity remains incomplete and market access in the EU is at risk. Those who have treated cybersecurity as an afterthought must now integrate 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 designed specifically for the Machinery Regulation and defines requirements for protecting machines against corruption. The standard provides two implementation approaches: an independent approach (approach A) with specific requirements directly from the standard and an approach based on IEC 62443 (approach B), which relies on the established series of standards for industrial cybersecurity.
The IEC 62443‑based approach in particular is relevant for many manufacturers who already have experience with that series or whose customers demand 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 a basis for the conformity assessment within EN 50742.
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 is not yet certain. Regardless, it already offers 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 the timeline is tight, however. Establishing a secure development process and embedding it in the technical documentation takes lead time, especially if these topics have not been systematically addressed before.
There are several reasons to start early. Cybersecurity cannot be bolted onto a finished product afterwards; it must be considered from the concept phase and that requires methodology and know‑how in the development team. In addition, machines often have long development cycles. Products that are currently in the concept phase and are intended to be launched in 2027 or later must already account for the new requirements.
The Machinery Regulation is not the only European regulation imposing cybersecurity requirements on products. The Cyber Resilience Act and the NIS‑2 Directive set out further 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 wider regulatory environment. How the Machinery Regulation and the Cyber Resilience Act interlock in detail is discussed separately under CRA and machinery regulation.
What this change means for product managers
The paradigm shift brought about by the Machinery Regulation affects more than the development department. Product managers must understand cybersecurity as an integral part of product requirements. Risk assessment, previously primarily the domain of functional safety, must be expanded to include the dimension of digital threats. And the technical documentation must transparently demonstrate how protection against corruption was implemented.
For manufacturers without structured cybersecurity processes in product development this is a significant change. It is not about a single feature or an additional test at the end of development, but about integrating security into the entire product lifecycle.
Those who start now will be prepared for 2027
The normative basis for implementation is taking shape with EN 50742. Via its IEC 62443 path manufacturers have an established and practice‑proven route available to demonstrate the required protection against corruption.
The decisive factor is lead time. Establishing 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 begin now to set up their development process have the necessary leeway until January 2027 and at the same time lay a solid foundation for the broader European product law.
Putting the machinery regulation and cybersecurity into context
If you would like to understand what the new essential requirements mean for your products and where to start, this can be clarified in a non‑binding conversation.
