Every public data breach

Disclosed this week53On record26,385

53 disclosed this week · 26,385 on record

Mastery Charter High School

Disclosed Jun 6, 202537,031 affectedConfirmed

Official notice

What is known

People affected37,031 (as reported by the organization)
DisclosedJun 6, 2025
HappenedSep 14, 2024
AttackNot stated
Data exposedNot stated
SectorEducation · US
StatusConfirmed

Sources

Official noticeago.vermont.gov
Vermont Attorney General: 2025-06-06 Mastery Charter High School Data Breach Notice to Consumers
Official noticein.gov
Indiana Attorney General 2025 data breach report: Mastery Charter High School

Notices filed

Residents of VTJun 6, 2025
Vermont AGCount not stated
Residents of INJun 6, 2025
Indiana AG1 person
History of this record
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 37031by backfillSource
occurred2026-09-25
empty to 2024-09-14by backfillSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (Vermont AG), confirmed by Vermont AG. Record counts are as reported. Not legal advice.

Everything about Mastery Charter High School