Palo Alto Unified School District

Palo Alto Unified School District notified California AG on May 1, 2017 of a data breach, which occurred on Apr 4, 2017. Data exposed: Social Security number, Driver's license / state ID, Financial / bank account, Date of birth, Usernames / passwords, Email address.

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

Organization: Palo Alto Unified School District
Source: California AG · source record
Date reported: May 1, 2017
Date(s) of breach: Tuesday, April 4, 2017
Residents affected: Not published by this source
Data exposed: Social Security number Driver's license / state ID Financial / bank account Date of birth Usernames / passwords Email address
Notice letter: Sample notice (PDF)
Discovered: Apr 4, 2017, as stated in the letter
"A computer security researcher doing targeted vulnerability analysis detected this issue late on April 4, 2017, downloaded those files, and notified Schoolzilla of the problem."
Days to notice: 27 days from discovery (Apr 4, 2017) to the California record (May 1, 2017). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
Third party: The letter attributes the incident to a vendor or service provider
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.

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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.