Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

University of Missouri

Disclosed Oct 20, 2023118,808 affectedConfirmed

Official notice

MOVEit breach exposes University of Missouri personal data

The University of Missouri said personal information transferred through its MOVEit Transfer application was acquired by the attackers who exploited the zero-day.

What is known

People affected118,808 (as reported by the organization)
DisclosedOct 20, 2023
HappenedMay 31, 2023
AttackSupply chain
Data exposedNamesOther
SectorEducation · US
StatusConfirmed
Part ofMoveit (2023)

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: University of Missouri
Regulatoroag.ca.gov
California AG breach notice: University of Missouri
Official noticeago.vermont.gov
Vermont Attorney General: 2023-10-20 University of Missouri Data Breach Notice to Consumers
Official noticein.gov
Indiana Attorney General 2023 data breach report: University of Missouri

Notices filed

Residents of VTOct 20, 2023
Vermont AGCount not stated
Residents of INOct 20, 2023
Indiana AG204 people
Residents of CAOct 25, 2023
California AGCount not stated
TotalOct 25, 2023
ResearchCount not stated

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History of this record
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 118808by backfillSource
disclosed2026-09-25
2023-10-25 to 2023-10-20by backfillSource
campaign2026-09-25
empty to moveit-2023by seedSource
attack2026-09-25
unknown to supply-chainby seedSource
data_types2026-09-25
[] to ["names","other"]by seedSource
summary2026-09-25
empty to The University of Missouri said personal information transferred through its MOVEit Transfer application was acquired by the attackers who exploited the zero-day.by seedSource
title2026-09-25
empty to MOVEit breach exposes University of Missouri personal databy seedSource
Added2026-09-25
First recordedby backfillSource

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

Everything about University of Missouri