MACT Health Board Inc.

MACT Health Board Inc. notified California AG on Jan 23, 2026 of a data breach, which occurred on Nov 20, 2025. Data exposed: Social Security number, Medical / health information, Health insurance, Name.

Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization: MACT Health Board Inc.
Source: California AG · source record
Date reported: Jan 23, 2026
Date(s) of breach: Wednesday, November 12, 2025Thursday, November 20, 2025
Residents affected: Not published by this source
Data exposed: Social Security number Medical / health information Health insurance Name
Notice letter: Sample notice (PDF)
Discovered: Jan 9, 2026, as stated in the letter
"We began our review of the files on November 25, 2025, and completed our review on January 9, 2026 when we determined that these files contained information that included your name and one or more of the following: your Social Security n..."
Days to notice: 14 days from discovery (Jan 9, 2026) to the California record (Jan 23, 2026). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
Offered in the letter: 12 months of credit or identity monitoring through Experian
Third party: The letter attributes the incident to a vendor or service provider
First seen by BreachTally: 2026-10-30 15:28 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

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Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.