Sunnyvale School District
bd_033820fca8149b86 · schema v1 · pii pii-v1
Full breach record for Sunnyvale School District →2 incidents on fileSunnyvale Elementary School District notified residents of multiple states that their information may have been involved in a data security incident. In May 2025, the district identified suspicious activity in its email environment and determined that a limited number of employee email accounts were accessed without authorization. The affected data included names and other personal information. The district engaged forensic experts, secured the email environment, and is offering identity theft protection services.
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Incident timeline
May 1, 2025
Discovered
Oct 3, 2025
Filed
vs. sector median
+15 wks slower
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.