Cal Water Investigating Iranian Hackers’ Claims

California Water Service (Cal Water) is investigating claims by the Iran-linked threat actor Handala, which alleges it stole several gigabytes of data from the utility's systems. The hackers leaked about 5 GB of data, including personal information from a customer billing database and an internal application. Cal Water reports no known operational disruptions to its water and wastewater systems or billing platform. The utility is collaborating with government partners and external experts to investigate and respond. The incident highlights ongoing targeting of water sector infrastructure by threat actors, but no confirmed operational impact has been reported.

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