Every public data breach

44 disclosed this week · 26,355 on record

R1 RCM

Disclosed Mar 11, 202416,121 affectedConfirmed

Official notice

R1 RCM, the business associate (BA), reported that it experienced a cybersecurity incident that affected the protected health information (PHI) of 16,121 individuals. The PHI involved included names, addresses, dates of birth, social security numbers, diagnoses, and conditions. The BA notified HHS, the affected individuals, and the media. In its mitigation efforts, the BA implemented additional administrative and technical safeguards to better safeguard sensitive data.

What is known

People affected16,121 (as reported by the organization)
DisclosedMar 11, 2024
HappenedJan 30, 2023
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
summary2026-09-25
empty to R1 RCM, the business associate (BA), reported that it experienced a cybersecurity incident that affected the protected health information (PHI) of 16,121 individuals. The PHI involved included names, addresses, dates of birth, social securiby 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 R1 RCM