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Hennessy Advisors Data Breach Investigation
Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the Hennessy Advisors, Inc. data breach.
If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.
About Hennessy Advisors
Hennessy Advisors is a publicly traded investment management company based in Novato, California. Founded in 1989, the company manages and markets the Hennessy Funds, which include mutual funds and ETFs across a range of investment categories such as domestic equity, multi-asset, sector, specialty and fixed income.
Over the years, Hennessy Advisors has expanded its offerings through several acquisitions, including Cornerstone Funds and FBR Funds, and now manages 17 different funds.
What Happened?
On March 30, 2025, Hennessy Advisors discovered suspicious activity affecting its access to certain systems and data.
The company began an investigation and brought in third-party cybersecurity specialists to help secure its systems. By late December 2025, Hennessy Advisors learned that certain data, including personal information of some investors, had been accessed and released without authorization.
By Feb. 5, 2026, the company confirmed that unauthorized parties had accessed sensitive information belonging to individuals associated with Hennessy Funds. Written notices began going out to affected consumers on Feb. 23, 2026.
The breach affected a total of 12,643 people in the United States, including 729 individuals in Texas, 346 individuals in Massachusetts, 147 individuals in Indiana, and 48 individuals in Maine.
Information Exposed:
- Names
- Driver's Licenses
- Social Security Numbers
- Financial Information (account number, credit/ debit card number)
You May Be Entitled to Compensation
If your personal information was compromised in the Hennessy Advisors data breach, you may be entitled to compensation for damages, time spent, or out-of-pocket expenses related to the incident. Lawyers are ready to help affected individuals understand their rights and pursue possible claims.
To find out if you qualify to join a lawsuit or to get more information, complete the below form.
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