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Iran-Linked Hackers Publish Cal Water Data as Utility Says No Service Disruption

Researchers warn that access to field GPS correction tools could let attackers pivot into billing systems, raising risks to customer privacy and potential escalation.

Overview

  • Handala posted a five‑gigabyte sample it said was stolen from California Water Service, and researchers say the files include customer billing records and credentials for an internal RTKBase GPS correction/mapping service.
  • Dataminr and multiple security firms traced the claimed breach to a June 11 post, after which the sample circulated to researchers who verified names, addresses, phone numbers and payment history in the data.
  • Cal Water’s preliminary investigation found no confirmed network compromise or disruption to water or wastewater operations, including its billing platform, and the company continues a formal probe.
  • Security experts note Handala has a pattern of mixing real data theft with exaggerated claims and say there is no public evidence the group can remotely shut off water, so their operational threats remain unverified.
  • Responders advise immediate rotation of exposed passwords, strict separation of RTK/GNSS and field-mapping systems from corporate networks, and heightened monitoring for follow‑on activity that could enable identity fraud or wider intrusions.