Patrick O’Brien is a Senior Safety and Cybersecurity Engineer at exida, LLC, where he leads process safety, functional safety, and cybersecurity consulting services and training courses for end-user industrial facilities. He has led risk assessments and other lifecycle activities for many different applications, including oil and gas, specialty chemical, machinery, and robotics. He is a coauthor of Implementing IEC 62443: A Pragmatic Approach to Cybersecurity and the principal author of the CCPS concept book Managing Cybersecurity in the Process Industries – A Risk-based Approach. Patrick has a BS in chemical engineering and German language from Pennsylvania State University.