Why you should use data diodes together with the Namur Open Architecture (NOA)

The Namur Open Architecture (NOA) helps the process industry adopt modern digital technologies. Using data diodes with NOA lets organisations modernise their systems while protecting critical assets and staying competitive.

Questions we cover in this article

• What is the Namur Open Architecture (NOA)?

• What consequences can a cyberattack lead to?

• What is a data diode?

• Why should the process industry use data diodes together with NOA?
  

What is the Namur Open Architecture (NOA)?

NOA is an initiative that aims to modernise the automation and process control systems in the process industry. It promotes an open and flexible architecture that facilitates the integration of various systems and devices, enabling better interoperability and data exchange. This approach enhances operational efficiency and allows for easier adoption of Industry 4.0 technologies. With NOA, users can easily transfer all that valuable data securely via a second channel from smart devices to a central platform and software applications. NOA offers secure access to all the automation network data, using the OPC UA communication standard, and makes the data available without changes to an existing automation network.




The NOA architecture – in which “Data Direction Control” is the term used with reference to data diodes.

What consequences can a cyberattack lead to?

Being exposed to a cyberattack can have serious consequences for the affected organisation, here are some examples:

• Productivity losses: Large productivity losses as the attack can lead to interruptions and even longer production stops. The attack can also result in a more lasting deterioration in productivity.
  

• Major injuries: With a cyberattack hitting a production the consequences could even lead to serious injury or even death. A cyberattack could e.g. cause an explosion or damage a production machine so that someone gets crushed in it.
  

• Data breach: Leakage or even loss of personal information about customers. Intellectual property rights are also at risk of being stolen.
  

• Reputational damage: The trust and reputation of the company can be severely damaged, which can lead to difficulties in gaining new customers in the future and difficulties in obtaining financing.
  

• Financial costs: Large costs can arise in connection to the attack, among other things to pay external service providers to solve the problems with shut down computers and more, but also for extra work internally to solve the situation. It can also entail costs if you as a company do not meet the various requirements placed on the business.
  

• Business closure: There is a risk that the company will be forced to close its entire business, at least temporarily, which for a lot of businesses that are based on the fact that they are constantly running is a serious threat.

Why should the process industry use data diodes together with NOA?

1. Enhanced cybersecurity
   By incorporating data diodes within the NOA framework, organisations can enhance the security of their automation systems. The unidirectional data flow minimises the risk of cyberattacks while still providing real-time data to analytics systems.
2. Operational efficiency
   With data diodes facilitating secure data transfer to analytics platforms, organisations can gain real-time insights into operations without compromising security.
3. Data integrity
   Data diodes protect the integrity of the data in the protected domain, ensuring that only selected data will go through the data diode. This is essential in industries where data accuracy is paramount for operational security and safety.
4. Flexibility and scalability
   NOA’s open architecture supports various technologies and protocols, making it easier to integrate data diodes as new security needs arise. This flexibility allows organisations to scale their security measures alongside their operational growth.
5. Compliance and standards
   With increasing regulatory requirements in industries like oil and gas, pharmaceuticals, and chemicals, using data diodes within the NOA structure can help organisations comply with security standards while maintaining operational efficiency.
6. Future-Proofing Operations
   By adopting a proactive approach to cybersecurity with data diodes, organisations build a better resilience against emerging threats and vulnerabilities.

So to summarise – using NOA together with data diodes provides the process industry with a robust framework that balances operational efficiency and security. This integration enables organisations to modernise their systems, protect critical assets, and remain competitive in an increasingly digital landscape.

Do you need some help with how data diodes can improve the security of your organisation? Contact us. We are at your service.