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44 disclosed this week · 26,355 on record

Hospital Sisters Health System

Disclosed Oct 26, 2023882,000 affectedConfirmed

Official notice

HSHS notifies 882,000 patients of August 2023 cyberattack

Hospital Sisters Health System notified over 882,000 patients that an attack discovered on August 27, 2023, which caused a system-wide outage, exposed names, birth dates, medical record numbers, treatment and insurance data, SSNs and driver's license numbers.

What is known

People affected882,000 (as reported by the organization)
DisclosedOct 26, 2023
DiscoveredAug 27, 2023
HappenedAug 16, 2023
AttackHacking
Data exposedNamesAddressesDates of birthHealthInsuranceSocial Security numbersGovernment IDs
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Hospital Sisters Health System

History of this record
source2026-09-25
empty to https://ocrportal.hhs.gov/ocr/breach/breach_report.jsfby backfillSource
disclosed2026-09-25
2024-08-30 to 2023-10-26by backfillSource
disclosed2026-09-25
2025-02-06 to 2024-08-30by backfillSource
data_types2026-09-25
[] to ["names","addresses","dob","health","insurance","ssn","government-id"]by seedSource
records_basis2026-09-25
empty to organizationby seedSource
records2026-09-25
empty to 882000by seedSource
summary2026-09-25
empty to Hospital Sisters Health System notified over 882,000 patients that an attack discovered on August 27, 2023, which caused a system-wide outage, exposed names, birth dates, medical record numbers, treatment and insurance data, SSNs and driverby seedSource
title2026-09-25
empty to HSHS notifies 882,000 patients of August 2023 cyberattackby seedSource
Added2026-09-25
First recordedby backfillSource

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

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