Investigation Open·Data Breach

Hennessy Advisors Inc Data Breach Case

State
IN
Filed
Feb 23, 2026
Data Types
10 types
Records
Not disclosed

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Quick Facts

State Filed
IN
Date Reported to AG
Feb 23, 2026
Date of Breach
Mar 30, 2025
Records Affected
Not disclosed
Status
Investigation Open
Last Updated
Oct 5, 2026
Data Types Exposed
Full NameSocial Security NumberDate of BirthFinancial Account NumberRouting NumberTax Identification NumberInvestment Portfolio DetailsMailing AddressEmail AddressPhone Number

The Breach — What We Know

Hennessy Advisors Inc was the subject of a data breach notification filed with the IN Attorney General. The AG filing was recorded on February 23, 2026. The breach or discovery date reported in the filing is March 30, 2025.

From the AG filing description

Hennessy Advisors Inc operates within the specialized financial services sector, serving as an investment management firm that oversees mutual funds and provides comprehensive asset management for individual and institutional investors. Because of its core business operations, the firm routinely collects, processes, and maintains vast quantities of highly sensitive personal and financial data. This information is essential for executing portfolio management, processing investment transactions, maintaining shareholder accounts, and complying with stringent federal and state regulatory reporting standards. Consequently, the company maintains extensive digital archives containing the most private details of its clients' financial lives. The security incident reported to the Indiana Attorney General in 2026 highlights the persistent vulnerabilities facing financial institutions in an era of sophisticated cyber threats. While specific technical forensics continue to emerge, data breaches affecting asset management and financial services firms typically involve unauthorized access to enterprise databases, sophisticated malware deployment, or compromises within third-party vendor ecosystems. In the financial sector, threat actors aggressively target infrastructure containing high-value financial records, exploiting network vulnerabilities or utilizing credential-stuffing techniques to bypass perimeter defenses and infiltrate internal repositories. For clients and investors associated with Hennessy Advisors Inc, the exposure of personal and financial information creates immediate and severe risks. The compromised data categories invariably include full names, Social Security numbers, dates of birth, financial account numbers, banking routing details, and comprehensive transaction histories. When exposed, this combination of data provides cybercriminals with the exact blueprint needed to execute financial account takeovers, fraudulent wire transfers, and unauthorized credit applications. Furthermore, the inclusion of Social Security numbers and dates of birth exposes victims to long-term identity theft, fraudulent tax filings, and synthetic fraud, forcing individuals into a protracted struggle to secure their credit profiles and financial assets. As a registered investment adviser and financial institution, Hennessy Advisors Inc is bound by strict federal and state regulatory mandates to safeguard consumer data. Under the Gramm-Leach-Bliley Act (GLBA) and applicable state data protection statutes, the company has an affirmative legal obligation to implement robust administrative, technical, and physical safeguards to protect sensitive client records. The occurrence of a data breach of this magnitude strongly suggests potential failures in maintaining adequate network security, failing to promptly patch known vulnerabilities, or neglecting to properly vet third-party vendors. These shortcomings may constitute a direct breach of the company's legal duties under consumer protection laws and common law negligence standards. Receiving a data breach notification letter from Hennessy Advisors Inc serves as formal confirmation that your private financial information was compromised due to corporate security failures. Legally, this notice establishes the concrete injury and standing necessary to participate in a class action lawsuit aimed at holding the company accountable. Importantly, affected individuals are not required to show proof of actual financial loss or identity theft to seek legal redress; the increased and imminent risk of future harm is sufficient under modern jurisprudence. Our firm is currently investigating potential legal claims on a contingency fee basis, meaning there are never any out-of-pocket costs or fees unless we successfully recover compensation on your behalf.

Do You Qualify for Compensation?

Under the Indiana data breach notification law, you may have a legal claim against Hennessy Advisors Inc if any of the following apply:

  • You received a written data breach notification letter from Hennessy Advisors Inc
  • You are or were a customer, patient, or employee of Hennessy Advisors Inc
  • Your information was held by Hennessy Advisors Inc in IN
  • Your bank or payment card data was potentially exposed

Exposed Data — What's at Risk

Based on the data types reported in this filing:

Identity Theftcritical risk

Your SSN is the master key to your identity. Once exposed, criminals can open new lines of credit, take out loans, or file taxes in your name.

Identity Verification Bypassmedium risk

Combined with a name and other leaked data, date of birth helps criminals pass identity verification questions at banks and government agencies.

SIM Swap & Vishingmedium risk

Phone numbers exposed in breaches are used for SIM swapping attacks — hijacking your number to bypass two-factor authentication on financial accounts.

Your Rights as a Victim

Common categories of compensation in data breach class actions

Time & Inconvenience

Courts recognize that the time spent monitoring accounts, placing credit freezes, and dealing with the aftermath of a breach has real economic value. This category of damages is recoverable even without direct financial loss.

Credit Monitoring & Identity Restoration

Professional credit monitoring services cost $10–$40 per month. Identity theft restoration services, if needed, can cost hundreds of hours and thousands of dollars. Courts have awarded these costs as direct damages in SSN breach cases.

Financial Losses & Fraudulent Charges

Direct financial losses resulting from the breach — unauthorized charges, fraudulent transfers, or fees incurred through fraud — are recoverable as compensatory damages. Banks may reverse some charges; a class action recovers the remainder and associated costs.

Statutory Minimum Damages

Several state data breach laws provide for statutory minimum damages — fixed amounts recoverable per affected individual regardless of actual loss. These provisions exist specifically to make legal action viable for victims who have not yet experienced direct harm.

Note: an attorney general breach filing does not by itself establish a settlement fund, a payment amount, or a claim deadline. If an official settlement notice is later issued, rely on that notice for payment details and deadlines.

Frequently Asked Questions

Do I need proof that my data was misused to file a claim against Hennessy Advisors Inc?

No. Under Indiana data breach notification law and federal law, the unauthorized exposure of your personal data — regardless of whether it has been actively misused — can be sufficient grounds for a claim. The breach itself is the injury.

How much does filing a claim cost?

Nothing. The Law Office of David S. Harris handles data breach cases on contingency — you pay zero upfront and owe nothing unless compensation is recovered.

My Social Security Number was exposed. What should I do right now?

Immediately place a free credit freeze at all three bureaus (Equifax, Experian, TransUnion). A freeze blocks new accounts from being opened in your name. Then file a complaint with the FTC at IdentityTheft.gov and contact our office — SSN exposure is one of the most serious breach types.

My financial account data was exposed. Can the bank recover my losses?

Banks may reverse fraudulent charges, but they are not obligated to compensate you for time lost, stress, or indirect damages. A class action claim against the breached company can recover those additional categories of harm.

Is there a deadline to file a claim?

State statutes of limitations for data breach claims typically run 2–4 years from the date of the breach or its discovery. Because this breach was recently disclosed, the window is open — but acting early preserves your options and strengthens the case.

What if Hennessy Advisors Inc offered me free credit monitoring after the breach?

Accepting free credit monitoring from Hennessy Advisors Inc does not waive your right to pursue legal action unless you signed a specific release waiving claims. In most cases, victims who accepted monitoring can still file.

Do I need to have received a notice letter to be eligible?

Not necessarily. Many data breach victims are never notified directly. If your personal information was held by Hennessy Advisors Inc during the relevant period, you may still qualify even without receiving a letter. A free eligibility review can confirm your status.

Applicable State Law

This breach was reported under the Indiana data breach notification law, which mandates notification and establishes your right to seek damages.

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