Every public data breach

44 disclosed this week · 26,355 on record

Cytometry Specialists

Disclosed Mar 25, 2022244,850 affectedConfirmed

Official notice

The covered entity (CE), Cytometry Specialists, Inc. dba CSI Laboratories, reported that an employee was the victim of a phishing attack that compromised the protected health information (PHI) of 244,850 individuals. The PHI involved included names, addresses, dates of birth, and health insurance and other treatment information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In its mitigation efforts, the CE strengthened its administrative and technical safeguards and retrained its staff on email security. OCR provided the CE with technical assistance regarding the HIPAA Breach Notification Rule.

What is known

People affected244,850 (as reported to HHS)
DisclosedMar 25, 2022
HappenedJan 18, 2022
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
sector2026-09-25
other to healthby backfillSource
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
[] to ["names","health"]by backfillSource
records_basis2026-09-25
organization to hhsby backfillSource
records2026-09-25
588 to 244850by backfillSource
summary2026-09-25
empty to The covered entity (CE), Cytometry Specialists, Inc. dba CSI Laboratories, reported that an employee was the victim of a phishing attack that compromised the protected health information (PHI) of 244,850 individuals. The PHI involved includby 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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