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47 disclosed this week · 26,367 on record

Mat‐Su Surgical Associates, APC

Disclosed May 15, 202013,146 affectedConfirmed

Official notice

The covered entity (CE), Mat-Su Surgical Associates, reported that it was the victim of a ransomware attack affecting the electronic protected health information (ePHI) of 13,146 individuals. The ePHI involved included names, addresses, dates of birth, Social Security numbers, diagnoses, medications prescribed, and claims information. The CE notified HHS, affected individuals, the media, and provided complimentary credit monitoring services. In response to the breach, the CE implemented additional technical safeguards. OCR provided the CE with technical assistance regarding the HIPAA Security Rule.

What is known

People affected13,146 (as reported by the organization)
DisclosedMay 15, 2020
DiscoveredMar 16, 2020
HappenedMar 16, 2020
AttackHacking
Data exposedNamesSocial Security numbersGovernment IDsHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
["names","ssn","government-id"] to ["names","ssn","government-id","health"]by backfillSource
summary2026-09-25
empty to The covered entity (CE), Mat-Su Surgical Associates, reported that it was the victim of a ransomware attack affecting the electronic protected health information (ePHI) of 13,146 individuals. The ePHI involved included names, addresses, datby backfillSource
data_types2026-09-25
[] to ["names","ssn","government-id"]by backfillSource
discovered2026-09-25
empty to 2020-03-16by backfillSource
Added2026-09-25
First recordedby backfillSource

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

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