Every public data breach

Disclosed this week50On record26,344

50 disclosed this week · 26,344 on record

University of Mississippi Medical Center

Disclosed Nov 2, 2026912,898 affectedConfirmed

Official notice

What is known

People affected912,898 (as reported by the organization)
DisclosedNov 2, 2026
DiscoveredOct 20, 2026
HappenedFeb 11, 2026
AttackNot stated
Data exposedSocial Security numbersGovernment IDsHealthInsurancePayment cardsFinancialDates of birthAddressesNames
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: University of Mississippi Medical Center
Official noticeoag.my.site.com
Texas Attorney General data security breach report BR-0005489: University of Mississippi Medical Center
Official noticeago.vermont.gov
Vermont Attorney General breach report: University of Mississippi Medical Center

Notices filed

Residents of CANov 2
California AGCount not stated
Residents of VTNov 2
Vermont AG17 people
Residents of TXNov 3
Texas AG2,778 people

Other breaches at University of Mississippi Medical Center

Hacking breachHacking exposed names and health records. Reported to the HHS archive.7,492 affectedHealthcareUSJul 7, 2017Lost or stolen device breachLost or stolen device exposed names and health records. Reported to the HHS archive.500 affectedHealthcareUSMar 21, 2013
History of this record
data_types2026-11-04
[] to ["ssn","government-id","health","insurance","payment-card","financial","dob","addresses","names"]by dailySource
records_basis2026-11-04
empty to organizationby dailySource
records2026-11-04
empty to 912898by dailySource
discovered2026-11-04
empty to 2026-10-20by dailySource
Added2026-11-04
First recordedby dailySource

First seen 2026-11-04 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

Everything about University of Mississippi Medical Center