Production environments are becoming increasingly digital. Machines report status information in real time, remote access connections enable rapid support, and production data flows directly into ERP, cloud, and analytics systems. With every new interface, not only does efficiency increase, but so does the attack surface. The boundaries between IT and production are steadily disappearing. As a result, cyber risks are reaching the area where they can hurt many companies the most: the core of their value creation.
Despite this, cybersecurity is still viewed primarily as an IT issue in many mid-sized companies. As long as no data is stolen and no emails are encrypted, the situation appears to be under control. However, this perspective falls short. When production lines stop, orders cannot be delivered, or quality issues arise, the issue is no longer just about IT. It becomes a matter of delivery capability, business continuity, revenue, and reputation.
Five mindsets that make organizations unnecessarily vulnerable
OT security does not primarily protect data, but business operations
Operational Technology, or OT, encompasses the systems that monitor and control physical processes. This includes production facilities, control rooms, machine controllers (such as PLCs), industrial networks, and fieldbus systems. When these systems are compromised, the resulting risks and impacts differ significantly from those typically seen in traditional IT environments.
Potential consequences include:
- Production downtime
- Quality deviations
- Delivery delays
- Contractual penalties
- Revenue losses
and can even extend to safety risks for employees, equipment, or facilities.
Unlike traditional IT systems, OT environments control real-world processes. While IT security primarily protects information, OT security safeguards the availability and stability of operational and production processes. As a result, the consequences of an OT security incident can be far-reaching and, in extreme cases, may affect people, equipment, or the environment.
Why production environments are far more vulnerable today than in the past
For a long time, production networks were considered relatively isolated. Many organizations operated under the assumption that there was a clear separation between IT and production. Machines were only accessible locally, and controllers were not connected to external networks. Today, that picture is rarely accurate. Remote access connections, Industry 4.0 initiatives, cloud integrations, IoT and IIoT sensors, and the exchange of production data have become standard practice in many organizations.
The business benefits of this development are undeniable. At the same time, however, new attack surfaces are emerging. Many industrial systems in operation today were installed ten or twenty years ago, at a time when cybersecurity played little to no role in their design. Today, those same assets are frequently part of highly connected environments. As a result, digitalization not only increases efficiency and transparency but also raises the security requirements for these deeply interconnected systems.
Cyberattacks on OT environments are a reality
The consequences are no longer theoretical, as demonstrated by numerous incidents across industry and manufacturing.
Following a cyberattack in 2019, aluminum manufacturer Norsk Hydro was forced to switch to manual operations worldwide. Production sites were only partially operational, while employees had to temporarily maintain critical processes without digital support. The incident highlighted how quickly a cyberattack can affect an organization's operational capabilities.
The NotPetya attack also demonstrated the impact on industrial value chains as early as 2017. Food and consumer goods manufacturer Mondelez experienced significant production disruptions. Among other impacts, production at the Milka plant in Lörrach was affected. The incident illustrated the high dependency of modern manufacturing companies on digital systems and processes.
In addition to real-world incidents, the threat landscape continues to evolve. Security researchers analyzed INCONTROLLER (PIPEDREAM), the first specialized framework specifically developed to target industrial control and automation systems. These tools focus on components commonly found in manufacturing and industrial environments.
Together, these examples highlight a trend that many organizations underestimate: production environments are increasingly becoming a target for professional attackers. Cyberattacks are no longer aimed exclusively at data. More and more often, they target the availability and stability of operational processes.
The greatest damage rarely occurs in the data center
Anyone who immediately thinks of data breaches when hearing about cyberattacks often overlooks the actual business risk. A successful attack on a production network may never make headlines, yet the economic consequences can still be severe. Just a few hours of unexpected downtime can disrupt supply chains, strain customer relationships, and consume significant internal resources.
For many mid-sized companies, value creation and delivery capability depend directly on stable production processes. Therefore, the key question is not how many attacks have been prevented. The critical question is what impact a successful attack would have on the business itself.
OT security is not just a critical infrastructure issue
A common misconception is: “We are not a critical infrastructure operator. Why should we invest heavily in OT security?”
The answer lies in the potential consequences. For many mid-sized companies, just a few hours of unplanned downtime can jeopardize delivery schedules, trigger contractual penalties, and damage long-standing customer relationships.
At the same time, requirements across supply chains are increasing. Customers, partners, and clients increasingly expect transparency regarding how organizations manage cyber risks. Risk transparency and a systematic approach to security are becoming common requirements in supplier assessments, audits, and tenders.
Regulatory requirements are also gaining importance. With NIS2, cybersecurity is moving further onto the management agenda. Organizations are expected to assess risks systematically, implement appropriate safeguards, and ensure that security incidents can be managed effectively. Even companies that are not directly subject to the regulation increasingly feel its impact through customer and partner requirements.
The IEC 62443 family of standards provides an important framework for securing industrial systems. It defines established security principles for production environments and helps organizations implement security measures in a structured, risk-based manner.
For many mid-sized companies, OT security is no longer primarily about compliance. The ability to understand and manage cyber risks in production environments is increasingly becoming a business-critical success factor.
Five mindsets that make organizations unnecessarily vulnerable.
We have never had an incident.
We have done just fine without OT security so far.
Our production environment is not interesting to hackers.
OT is IT's responsibility.
More security means less productivity.
OT security rarely starts with technology
Many organizations initially look for technical solutions. In practice, however, successful OT security usually begins with three fundamental questions:
IT, production, maintenance, and external service providers often work on the same systems. Clearly defined roles and responsibilities are therefore a fundamental prerequisite for effective OT security.
Many organizations do not have a complete understanding of their OT landscape. Limited visibility makes it difficult to assess risks and allows attack paths to remain undetected for long periods.
Not every security incident can be prevented. What matters is whether production areas, assets, and networks are separated in a way that effectively limits the impact of an attack.
These questions form the foundation of the upcoming articles in this blog series. They demonstrate why clear responsibilities, visibility into systems and attack paths, and effective segmentation are among the most important building blocks of a resilient production environment.
More on that in the coming weeks.