California Water Service is an organization tracked by ThreatCluster, appearing in 3 threat clusters built from 3 intelligence report mentions.
California Water Service is a organization tracked across 3 threat clusters and 3 intelligence report mentions on ThreatCluster. First observed June 12, 2026; most recent activity July 23, 2026.
Iran-affiliated hackers have expanded their attacks on U.S. critical infrastructure, targeting programmable logic controllers (PLCs) from Siemens and Schneider Electric, in addition to Rockwell Automation systems. The…
The Iran-aligned hacking group Handala has claimed responsibility for breaching California water utility systems, framing the operation as retaliation for recent US airstrikes that damaged water infrastructure in Iran.…
The Iran-linked hacking group Handala claims to have breached FBI-operated drones used for security at the 2026 FIFA World Cup, which began on June 11, 2026. They assert access to sensitive data, including images and…
California Water Service is an organization tracked by ThreatCluster, appearing in 3 threat clusters built from 3 intelligence report mentions.
The most recent intelligence report mentioning California Water Service on ThreatCluster is dated July 23, 2026. Activity was first observed June 12, 2026, giving a tracked span from then to July 23, 2026.
Across ThreatCluster reporting, California Water Service most frequently co-occurs with Handala, Data Breach, Malware, Cal Water, Iran, among 12 tracked related entities.
The most significant recent cluster is “Iranian Hackers Target U.S. Critical Infrastructure with Advanced PLC Attacks” (17 articles · Updated July 23, 2026). California Water Service appears across 3 threat clusters in total, listed above with sources.
California Water Service appears in 3 intelligence report mentions across 3 deduplicated threat clusters, aggregated from 17,000+ monitored sources.