Iranian Cyberattacks on US Water Utilities Expose Critical Infrastructure Vulnerabilities
Throughout summer 2024, water utilities across the United States faced a sustained campaign of cyberattacks primarily attributed to Iranian threat actors, targeting internet-exposed operational technology (OT) systems and programmable logic controllers (PLCs). The attacks exploited aging infrastructure built for durability rather than cybersecurity, with attackers gaining initial access through exposed OT systems, vulnerable PLCs, and compromised integrator connections. The incidents prompted the Water Information Sharing and Analysis Center (WaterISAC) to accelerate threat intelligence sharing and partner with Cyware to enhance sector-wide cyber defense capabilities. These attacks underscore the growing threat to critical infrastructure as nation-state actors increasingly target industrial control systems amid escalating global tensions. The incidents highlight the vulnerability of legacy OT environments and demonstrate how threat actors are exploiting the convergence of IT and OT networks to compromise essential services.
Kill Chain
