This Guidance helps protect OT infrastructure using cybersecurity services. As digital applications for OT have increased, so has the convergence of OT and IoT technology. However, a more complex OT network may open the way for security vulnerabilities. With this Guidance, you can implement a cybersecurity approach to defend against malicious attacks, support passive monitoring 24/7, and plan for pre-defined actions to avoid security breaches that may lead to plant shutdowns.