Defending Water and OT Systems from Internet Risk
🔒 Recent cyberattacks against U.S. water and wastewater systems show that OT impact extends beyond data loss to public health, environment, and community functions. Distributed architectures, legacy controllers, remote cellular sites, and accumulated third-party access increase the attack surface. Government advisories document exploitation of internet-facing PLCs and HMIs, while new legislation seeks to expand EPA cybersecurity authority. Fortinet recommends unified OT architectures, secure cellular connectivity, ZTNA, and IEC 62443-4-2–certified solutions for consistent protection.
