CISA Guide Helps Critical Infrastructure Adopt Secure OT
🔒 CISA released Barriers to Secure OT Communications: Why Johnny Can’t Authenticate to help operational technology (OT) owners, operators, integrators, and manufacturers adopt more secure communications. Based on interviews with stakeholders across Water and Wastewater, Transportation, Chemical, Energy, and Food and Agriculture sectors, the guide explains why insecure legacy industrial protocols persist and how threat actors can impersonate devices or alter messages. It identifies practical barriers—cost and complexity, latency and bandwidth, inspection issues from encryption, and interoperability with legacy products—and offers actionable recommendations to reduce friction and improve usability when procuring, deploying, and maintaining secure OT communications.
