OMICRON Magazine

SECURITY ASSESSMENT FINDINGS IN SUBSTATIONS AND POWER PLANTS Frequently occurring risks encountered while traveling around the world About the author Ozan Dayanc is an OT security engineer, product specialist, and technical support member at OMICRON. He shares his insights about the protection of power utility automation networks, which he garnered assessing OT networks around the globe. At the end of 2020, I was contacted by a colleague who tasked me with creating a security assessment report for one of our customers using StationGuard our Intrusion Detection System (IDS). I received engineering files from said customer and was familiarized with the utility’s network architecture. These documents always constitute the conventional basis for a security assessment before my colleagues and I continue our assessment on-site. The data from my first security assessment proved highly unexpected to substation engineers and 6