Iran-linked group breached California Water Service systems, leaked 5GB of data
An Iran-linked threat group named Handala breached systems belonging to California Water Service (Cal Water), which serves approximately two million customers across California. The group claimed responsibility for the breach and leaked 5 GB of data from the compromised systems. The breach occurred on June 11, 2026.
An Iran-linked threat group named Handala breached systems belonging to California Water Service (Cal Water), serving approximately two million customers across California. The Handala group claimed responsibility for the breach and leaked 5 GB of data from the compromised systems. According to industrialcyber.co, the leaked data allegedly contains customer billing information, personally identifiable information (PII), and administrative credentials associated with an internal GPS correction network spanning multiple service districts. According to presstv, the Handala group stated the breach was in direct retaliation for a U.S. airstrike that destroyed drinking water reservoirs in southern Iran.
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corroboration pass — 3 corroborated across opposed news blocs,
0 contested (attributed to both sides), 2
single-source (attributed). Nothing was added; no significance was inferred.
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