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Latest / California / May 2017

Mt. Diablo Unified School District

Mt. Diablo Unified School District notified California AG on May 19, 2017 of a data breach, which occurred on Apr 27, 2017. Data exposed: Medical / health information, Email address, Phone number, Postal address.

All 4 filings by Mt. Diablo Unified School District, state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
Mt. Diablo Unified School District
Source
California AG · source record
Date reported
May 19, 2017
Date(s) of breach
Thursday, April 27, 2017
Residents affected
Not published by this source
Data exposed
Medical / health information Email address Phone number Postal address
Notice letter
Sample notice (PDF)
Days to notice
22 days from the end of the breach window (Apr 27, 2017, no discovery date in the letter) to the California record (May 19, 2017). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
First seen by BreachTally
2026-10-30 16:18 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 16:18 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 Mt. Diablo Unified School District

OrganizationSourceStateReportedResidents affectedData exposed
Mt. Diablo Unified School District California AG CA Jun 11, 2020 Not published In the letter (PDF)
Mt. Diablo Unified School District California AG CA Sep 7, 2018 Not published In the letter (PDF)
MT. DIABLO UNIFIED SCHOOL DISTRICT California AG CA Dec 12, 2012 Not published Social Security numberUsernames / passwordsPostal addressName

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