HENNESSY ADVISORS, INC.
bd_4cad2bf43441a73a · schema v1 · pii pii-v1
Full breach record for HENNESSY ADVISORS, INC. →Hennessy Advisors, Inc., a publicly traded investment management firm, notified Massachusetts residents of a data security incident that may have affected personal information shared during business dealings. The notice, dated February 23, 2026, states there is no evidence of misuse of the impacted information. The company is offering 24 months of credit and CyberScan monitoring, a $1,000,000 insurance reimbursement policy, and fully managed identity theft recovery services through IDX. The specific nature of the incident, dates of occurrence, and number of affected individuals are not disclosed in the letter.
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Incident timeline — partial
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Breach window unknown
Feb 24, 2026
Filed
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Corroborated · see linked filings
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Linked disclosures
Why this link?Regulatory filings (8) · sorted by filing gap
- California State AGbd_072c9ab8534cfc812026-02-24Verified
- Maine State AGbd_41991ab4574f8c982026-02-24Verified by operator
- New Hampshire State AGbd_6d4e4e25f72021c32026-02-24Verified
- Texas State AGbd_4a3d6923a18d23b52026-02-25 · +1dVerified by operator
Show 4 more filings ↓Show fewer ↑up to 23d gap
- Indiana State AGbd_155d62cf979564682026-02-23 · +1dCandidate
- Vermont State AGbd_d11bdc84764407482026-02-23 · +1dVerified
- Nebraska State AGbd_f68cb883eed2da892026-02-23 · +1dVerified
- Illinois State AGbd_ffe201debd927b8a2026-02-01 · +23dVerified
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
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.