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Latest / California / June 2026

MCBS, LLC

MCBS, LLC notified California AG on Jun 26, 2026 of a data breach, which occurred on Sep 26, 2025. Data exposed: Medical / health information.

All 4 filings by MCBS, LLC, state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
MCBS, LLC
Source
California AG · source record
Date reported
Jun 26, 2026
Date(s) of breach
Monday, September 22, 2025Friday, September 26, 2025
Residents affected
Not published by this source
Data exposed
Medical / health information
Notice letter
Sample notice (PDF)
Discovered
Sep 25, 2025, as stated in the letter
"On or about September 25, 2025, we learned that an unauthorized individual may have gained access to our network."
Days to notice
274 days from discovery (Sep 25, 2025) to the California record (Jun 26, 2026). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82). Over the statutory period
Offered in the letter
credit or identity monitoring through Experian
First seen by BreachTally
2026-10-30 15:27 UTC

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

First seen by BreachTally at 15:27 UTC on Oct 30, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the count, the data exposed and the letter. Start a 14-day free trial. We email you two days before the first charge and you cancel in one click.
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Other filings by MCBS, LLC

OrganizationSourceStateReportedResidents affectedData exposed
MCBS LLC Texas AG TX Jun 30, 2026 13,302 Social Security numberMedical / health informationHealth insuranceDate of birth+2
MCBS, LLC Massachusetts OCABR MA Jun 26, 2026 383 Social Security numberMedical / health information
MCBS, LLC HHS OCR US Jun 26, 2026 1,261,464 Medical / health information

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