Skip to content

Southeast Series of Lockton Companies

Disclosed Feb 28, 20251 year ago1,168,911 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 exposedNames, Health, Insurance
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

WhereFiledPeople
HHS OCRtotalFeb 28, 20251,124,727
Indiana AGresidents of INFeb 28, 202525,754
California AGresidents of CAMar 20, 2025
Washington AGresidents of WAMar 20, 202511,794
Delaware DOJresidents of DEMar 20, 20253,481
Oregon DOJresidents of ORMar 20, 2025112,702
Vermont AGresidents of VTMar 20, 2025
California AGresidents of CAApr 8, 2025
California AGresidents of CAMay 23, 2025
California AGresidents of CAJun 27, 2025
History of this record
  • 2026-09-25 · records_basis: hhs to organization · backfill source
  • 2026-09-25 · records: 1124727 to 1168911 · backfill source
  • 2026-09-25 · source: empty to https://ago.vermont.gov/document/2025-03-20-southeast-series-lockton-companies-data-breach-notice-consumers · backfill source
  • 2026-09-25 · sector: other to health · backfill source
  • 2026-09-25 · records_basis: organization to hhs · backfill source
  • 2026-09-25 · records: 982669 to 1124727 · backfill source
  • 2026-09-25 · disclosed: 2025-03-20 to 2025-02-28 · backfill source
  • 2026-09-25 · data_types: [] to ["names","health","insurance"] · backfill source
  • 2026-09-25 · records_basis: empty to organization · backfill source
  • 2026-09-25 · records: empty to 982669 · backfill source
  • 2026-09-25 · attack: unknown to hacking · backfill source
  • 2026-09-25 · discovered: empty to 2024-11-20 · backfill source
  • 2026-09-25 · disclosed: 2025-04-08 to 2025-03-20 · backfill source
  • 2026-09-25 · disclosed: 2025-05-23 to 2025-04-08 · backfill source
  • 2026-09-25 · disclosed: 2025-06-27 to 2025-05-23 · backfill source
  • 2026-09-25 · added · backfill source

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

New breaches by email

Wednesdays, only in weeks with newly disclosed breaches, the largest first.

Double opt-in. Unsubscribe any time.