DisclosureLens
HackingEducationEducationStolen CredentialsEmployee Data InvolvedCustomer Data InvolvedIdentity (basic)PIILowContained

Sunnyvale School District

bd_033820fca8149b86 · schema v1 · pii pii-v1

Severity

Low

Discovered

May 1, 2025

Filed

Oct 3, 2025

To disclose

22 weeks

Affected

Not disclosed

Confidence

66%
Full breach record for Sunnyvale School District2 incidents on file

Sunnyvale 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.

California clockDiscovered May 1, 2025Notified Oct 3, 2025155d CA 60-day late22 weeks discovery → filing

Incident timeline

discovery → filing · 22 weeks / 155 days

May 1, 2025

Discovered

Oct 3, 2025

Filed

vs. sector median

+15 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.