John Cusimano, vice president of industrial cybersecurity at aeSolutions.
A refinery attempted to upgrade their process control network (PCN) switches in one unit during a planned maintenance window, but it led to several hours of downtime.
Technology Update: If it isn’t secure, it isn’t safe. Cybersecurity vulnerabilities represent additional failure modes and safety incidents not factored into traditional safety assessments. Consider safety when creating a business justification for cybersecurity risk assessments.