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Investigation OpenCA AG filing · January 16, 2026

Sonoma County Emergency Management Reports November 2025 Data Event

The Sonoma County Department of Emergency Management in California recently filed a notice about a data security incident that occurred in November 2025. Public records confirm that an investigation into the event, which may have exposed personal information, is currently in progress.

State
CA
Breach date
November 26, 2025
Reported
January 16, 2026

The Sonoma County Department of Emergency Management (DEM) in California has reported a data security incident that took place on November 26, 2025. The official filing regarding this event was submitted on January 16, 2026, indicating that the department is actively investigating the circumstances surrounding the incident.

According to the information provided in public filings, the specific types of personal information involved in this incident have not been detailed. The records state only that personal information may have been exposed as a result of the security event.

The investigation into the scope and impact of this data incident is still underway. Further details are expected to emerge as the Sonoma County Department of Emergency Management continues its efforts to understand the full extent of the compromise.

Individuals who believe they may be affected by this incident should remain vigilant. It is generally advisable to regularly review statements from financial institutions and other accounts for any unauthorized activity. Monitoring credit reports for unexpected changes or new accounts opened in your name can also help detect potential misuse of your information. These steps are widely recommended for protecting your data after any security event.

Source: CA Attorney General filing

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