Integration with IoT devices will pose a cybersecurity risk if not mitigated. One of the mitigations is with a strong authentication system supported by MFA. All data sent from IoT devices must be encrypted. Another mitigation is to create a network segmentation that separates the IoT network and the main network.

Las tecnicas mas recomendadas no solo por cuestiones de seguridad cuando hablamos de IoT en un sistema de control son mediante una capa de software en el borde (the edge) que permita preprocesar y contextualizar los datos, siendo este software quien envie los datos preprocesados de forma segura y encriptada

1.Strong authentication (multifactor) for access by IOT devices to control system. 2.Proper network segmentation must. 3.Updation of software and patches for control system as well as for IOT devices as per OEM directives. 4.Event Monitoring is required depending upon the sizes of IOT connectivity requirement, if budget permit.

When integrating IoT devices into control systems, it's crucial to adopt a defense-in-depth approach aligned with IEC 62443 to ensure multiple layers of security. The integration should start with a risk assessment to identify vulnerabilities and define a robust security architecture. Key measures include network segmentation to isolate IoT devices, strong authentication and authorization to control access, and continuous monitoring to detect anomalies in real time. Additionally, a vulnerability management process should be in place, along with clear security policies and data protection measures. Finally, training for all involved personnel is essential to reinforce cybersecurity awareness and ensure secure operations.