Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Hennessy Advisors

Disclosed Feb 23, 202612,643 affectedConfirmed

Official notice

What is known

People affected12,643 (as reported by the organization)
DisclosedFeb 23, 2026
DiscoveredFeb 5, 2026
HappenedMar 30, 2025
AttackNot stated
Data exposedSocial Security numbersPayment cardsFinancialNames
SectorFinance · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: Hennessy Advisors
Official noticeoag.my.site.com
Texas Attorney General data security breach report BR-0004860: Hennessy Advisors
Official noticeago.vermont.gov
Vermont Attorney General: 2026-02-23 Hennessy Advisors Data Breach Notice to Consumers
Official noticein.gov
Indiana Attorney General 2026 data breach report: Hennessy Advisors

Notices filed

Residents of VTFeb 23
Vermont AGCount not stated
Residents of INFeb 23
Indiana AG147 people
Residents of CAFeb 24
California AGCount not stated
Residents of TXFeb 25
Texas AG729 people
History of this record
source2026-09-25
empty to https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/DB-Year-to-Date-Report-7_2026.pdfby backfillSource
disclosed2026-09-25
2026-02-24 to 2026-02-23by backfillSource
data_types2026-09-25
[] to ["ssn","payment-card","financial","names"]by backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 12643by backfillSource
discovered2026-09-25
empty to 2026-02-05by 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.

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