Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

MedicareCompareUSA

Disclosed Mar 21, 20255,782 affectedConfirmed

Official notice

What is known

People affected5,782 (as reported to HHS)
DisclosedMar 21, 2025
DiscoveredNov 19, 2024
HappenedNov 5, 2024
AttackPhishing
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeatg.wa.gov
Washington Attorney General breach notice: MedicareCompareUSA
Official noticeocrportal.hhs.gov
HHS OCR breach report: MedicareCompareUSA (Business Associate, WA)

Notices filed

TotalMar 21, 2025
HHS OCR5,782 people
Residents of WAMay 12, 2025
Washington AG1,768 people
History of this record
data_types2026-09-25
[] to ["names","health"]by backfillSource
records_basis2026-09-25
empty to hhsby backfillSource
records2026-09-25
empty to 5782by backfillSource
disclosed2026-09-25
2025-05-12 to 2025-03-21by backfillSource
Added2026-09-25
First recordedby backfillSource

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

Everything about MedicareCompareUSA