Every public data breach

44 disclosed this week · 26,355 on record

New York Oncology Hematology

Disclosed Nov 16, 2018128,420 affectedConfirmed

Official notice

The covered entity (CE), New York Oncology Hematology, P.C., reported that numerous employees of it and its business associate (BA) were the victims of an email phishing attack that affected the electronic protected health information (ePHI) of 128,400 individuals. The ePHI involved included names, dates of birth, addresses, email addresses, health insurance information, diagnoses, Social Security numbers, drivers’ license numbers, and other treatment information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. The CE also provided one year of credit monitoring and identity theft protection services. In its mitigation efforts, the BA strengthened its technical and security safeguards while the CE strengthened its administrative safeguards and provided training on email security to all workforce members.

What is known

People affected128,420 (as reported by the organization)
DisclosedNov 16, 2018
HappenedApr 20, 2018
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
[] to ["names","health"]by backfillSource
summary2026-09-25
empty to The covered entity (CE), New York Oncology Hematology, P.C., reported that numerous employees of it and its business associate (BA) were the victims of an email phishing attack that affected the electronic protected health information (ePHIby 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.

Everything about New York Oncology Hematology