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Investigation OpenCalifornia AG filing · January 23, 2026

MACT Health Board Inc. Reports Data Breach to California Regulators

MACT Health Board Inc., a California-based organization, reported a data breach on January 23, 2026, following an incident on November 12, 2025. The filing indicates unauthorized access to its systems, potentially compromising personal information. Affected individuals should review any direct notifications carefully.

State
California
Breach date
November 12, 2025
Reported
January 23, 2026

MACT Health Board Inc. formally reported a data breach to regulatory authorities in California on January 23, 2026. This filing confirms that an unauthorized access event occurred within the organization's systems, potentially affecting individuals whose information is maintained by the entity.

The public record indicates that the incident resulted in the compromise of personal information. While the exact categories of data involved are not detailed in the available public disclosures, this type of event often prompts recipients of notification letters to take precautionary measures.

The breach itself was identified as having taken place on November 12, 2025. According to the public filings, an investigation into the full scope and impact of this security incident remains ongoing.

Individuals who have received an official data breach notification letter from MACT Health Board Inc. are strongly advised to read the document thoroughly. These letters typically provide specific details known at the time of reporting and may offer guidance or identity protection services to those affected.

General protective steps include remaining vigilant for unusual activity across personal accounts and reviewing credit reports for unauthorized entries. Placing a fraud alert with credit bureaus can also provide an additional layer of security after such an event.

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