Replace "air gap" cybersecurity with a multibarrier approach
Abstract
The traditional “air gap” approach to cybersecurity in water utilities is no longer sufficient to defend against evolving cyber threats. This article proposes a multibarrier cybersecurity strategy that incorporates network segmentation, strict access controls, continuous monitoring, and regular system updates. By adopting a layered defense model, water utilities can better protect critical infrastructure and respond proactively to emerging risks.
The full article is available on the American Water Works Association website and requires AWWA membership for access.