Cucamonga Valley Water District data breach

What we know

Cucamonga Valley Water District is a public utility provider responsible for managing water services, infrastructure, and billing for its service area. As a utility entity, the organization collects and maintains sensitive personal information necessary for account management, including billing details, service addresses, and government-issued identification used for verification. In 2025, the District officially reported a data security incident to the California Attorney General, confirming that unauthorized access to its systems occurred. If you received a formal data breach notification letter from the District, it indicates that your personal information was likely stored within the affected environment. This notice is intended to inform you of the incident and provide guidance on the steps you should take to protect your identity and financial security.

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