Mount Diablo Unified School District

Mount Diablo Unified School District notified California AG on Oct 20, 2020 of a data breach, which occurred on Sep 14, 2020. Data exposed: Email address, Phone number.

Organization: Mount Diablo Unified School District
Source: California AG · source record
Date reported: Oct 20, 2020
Date(s) of breach: Monday, September 14, 2020
Residents affected: Not published by this source
Data exposed: Email address Phone number
Notice letter: Sample notice (PDF)
First seen by BreachTally: 2026-10-30 16:09 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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