DisclosureLens
UnknownFinancial ServicesFinanceFinancial accountIdentity (basic)Government IDHigh

HENNESSY ADVISORS, INC.

bd_4a3d6923a18d23b5 · schema v1 · pii pii-v1

Severity

High

Discovered

Feb 5, 2026

Filed

Feb 25, 2026

To disclose

20 days

Affected · nationwide

12,643729 in this filing

Linked

9 filings

Confidence

95%
Full breach record for HENNESSY ADVISORS, INC.

Hennessy Advisors, Inc. based in Novato, California, a financial services entity reported a data breach to the Texas Attorney General. The breach was discovered on 2026-02-05 and reported on 2026-02-25. 729 Texas residents were affected. 12,643 individuals affected in total. Types of information involved: Name of individual;Social Security Number Information;Driver’s License number;Financial Information (e.g. account number, credit or debit card number). Consumers were notified via U.S. Mail.

Texas clock TX AG ≤30d20 days discovery → filing
AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 312 days
discovery → filing · ≤ 20 days

Mar 30, 2025

Begins

Feb 5, 2026

Discovered

Feb 25, 2026

Filed

vs. sector median

5 wks faster

This filing is one of 9 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

Show 4 more filingsup to 24d gap

Filing propagation · 9 filings · 9 states

View merged incident ↗

Pattern: first filing Feb 1 (IL), last Feb 25 (TX) — a 24-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.