Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Onix Group

Disclosed May 26, 2023387,830 affectedConfirmed

Official notice

What is known

People affected387,830 (as reported to HHS)
DisclosedMay 26, 2023
DiscoveredJun 9, 2023
HappenedMar 20, 2023
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeattorneygeneral.delaware.gov
Notice letter filed with the Delaware DOJ: Onix Group
Official noticeocrportal.hhs.gov
HHS OCR breach report (archive, resolved): Onix Group (Business Associate, PA)

Notices filed

TotalMay 26, 2023
HHS archive387,830 people
Residents of DEJul 10, 2023
Delaware DOJ7,948 people
History of this record
sector2026-09-25
other to healthby backfillSource
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
["names"] to ["names","health"]by backfillSource
records_basis2026-09-25
empty to hhsby backfillSource
records2026-09-25
empty to 387830by backfillSource
disclosed2026-09-25
2023-07-10 to 2023-05-26by backfillSource
Added2026-09-25
First recordedby backfillSource

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

Everything about Onix Group