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Breaches.

Sam's Club

Disclosed Oct 21, 20205 years ago285,885 affectedConfirmed

Official notice

What is known

People affected285,885 (as reported by the organization)
DisclosedOct 21, 2020
DiscoveredSep 24, 2020
HappenedSep 24, 2020
AttackHacking
Data exposedNames, Credentials and tokens
SectorNonprofit · US
StatusConfirmed

Sources

Source
California Attorney General breach notice: Sam's Cluboag.ca.gov · Official notice
Washington Attorney General breach notice: Sam's Clubatg.wa.gov · Official notice
Notice letter filed with the Delaware DOJ: Sam's Clubattorneygeneral.delaware.gov · Official notice

Notices filed

WhereFiledPeople
California AGresidents of CAOct 21, 2020
Washington AGresidents of WAOct 21, 2020771
Delaware DOJresidents of DEOct 21, 2020479

Other breaches at Sam's Club

BreachAffected
Clop lists Sam's Club on leak site; retailer investigatesMar 28, 20251 year agoExtortionUnverifiedUnknown
History of this record
  • 2026-09-25 · data_types: [] to ["names","credentials"] · backfill source
  • 2026-09-25 · records_basis: empty to organization · backfill source
  • 2026-09-25 · records: empty to 285885 · backfill source
  • 2026-09-25 · attack: unknown to hacking · backfill source
  • 2026-09-25 · discovered: empty to 2020-09-24 · 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 Sam's Club

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