OT Product Security Upgrade

Support to increase the security of OT products
OT solutions with the highest market potential are designed in accordance with IEC 62443 standards.

Discover our consulting options to reach your goals

For products that are already designed (software applications, embedded components, IoT or network devices), our technical support team can help modify the product to increase its security capacity, in accordance with the SL-T objectives required by the IEC 62443 standard.

With regard to upgrading the product, advice can be given on the flow of data within the component and related authentication and encryption, and on selection of the protocols, hardware and operating system.

A security specification is prepared based on our consultancy that provides the people responsible for design with key information on how to meet the requirements of OT Cyber Security of the market.


In IEC 62443/ISA 99 terms, an OT system is defined as a “control system,” that is, a hardware or software component intended to be integrated into a final industrial automation and control system. PLCs, HMIs, SCADA systems, and safety instrumented systems are examples of OT systems.

The legislative references in the IEC 62443 standard directed at OT device manufacturers are found in IEC 62443-4-1 and IEC 62443-4-2 regarding the design requirements in conformity with legislation for systems, sub-systems, or hardware or software components.

As defined in IEC 62443-4-1, the manufacturer is required to implement certain cyber security practices when developing the product:

  • Specification of Security Guidelines
  • Security by design
  • Secure Implementation
  • Security V&V Testing
  • Security Guidelines

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Why Choose us

  • We have gained experience in the OT Cyber Security field since 2014
  • We test every solutions thanks to our in-house OT Cyber Security laboratory
  • Our specialists are IEC 62443/ISA 99-certified personnel (Fundamentals Specialist and Cyber Security Risk Assessment Specialist)
  • Automation and OT Network Security are some of our most performing competences
  • We have bulit a wide network of partnerships with the main international OT solution suppliers
  • Our BYHON internal division is the ISASecure® accredited certification body

For more information about this service or to request a quote