Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Southeast Series of Lockton Companies

Disclosed Feb 28, 20251,168,911 affectedConfirmed

Official notice

What is known

People affected1,168,911 (as reported by the organization)
DisclosedFeb 28, 2025
DiscoveredNov 20, 2024
HappenedNov 20, 2024
AttackHacking
Data exposedNamesHealthInsurance
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: Southeast Series of Lockton Companies
Official noticeatg.wa.gov
Washington Attorney General breach notice: Southeast Series of Lockton Companies
Official noticeattorneygeneral.delaware.gov
Delaware DOJ breach notice: Southeast Series of Lockton Companies
Official noticejustice.oregon.gov
Oregon DOJ breach notice: Southeast Series of Lockton Companies
Official noticeocrportal.hhs.gov
HHS OCR breach report: Southeast Series of Lockton Companies (Business Associate, GA)
Official noticeago.vermont.gov
Vermont Attorney General: 2025-03-20 Southeast Series of Lockton Companies Data Breach Notice to Consumers
Official noticein.gov
Indiana Attorney General 2025 data breach report: Southeast Series of Lockton Companies

Notices filed

TotalFeb 28, 2025
HHS OCR1,124,727 people
Residents of INFeb 28, 2025
Indiana AG25,754 people
Residents of CAMar 20, 2025
California AGCount not stated
Residents of WAMar 20, 2025
Washington AG11,794 people
Residents of DEMar 20, 2025
Delaware DOJ3,481 people
Residents of ORMar 20, 2025
Oregon DOJ112,702 people
Residents of VTMar 20, 2025
Vermont AGCount not stated
Residents of CAApr 8, 2025
California AGCount not stated
Residents of CAMay 23, 2025
California AGCount not stated
Residents of CAJun 27, 2025
California AGCount not stated
History of this record
records_basis2026-09-25
hhs to organizationby backfillSource
records2026-09-25
1124727 to 1168911by backfillSource
source2026-09-25
empty to https://ago.vermont.gov/document/2025-03-20-southeast-series-lockton-companies-data-breach-notice-consumersby backfillSource
sector2026-09-25
other to healthby backfillSource
records_basis2026-09-25
organization to hhsby backfillSource
records2026-09-25
982669 to 1124727by backfillSource
disclosed2026-09-25
2025-03-20 to 2025-02-28by backfillSource
data_types2026-09-25
[] to ["names","health","insurance"]by backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 982669by backfillSource
attack2026-09-25
unknown to hackingby backfillSource
discovered2026-09-25
empty to 2024-11-20by backfillSource
disclosed2026-09-25
2025-04-08 to 2025-03-20by backfillSource
disclosed2026-09-25
2025-05-23 to 2025-04-08by backfillSource
disclosed2026-09-25
2025-06-27 to 2025-05-23by backfillSource
Added2026-09-25
First recordedby backfillSource

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

Everything about Southeast Series of Lockton Companies