HENNESSY ADVISORS, INC data breach

Clerk's notes

Hennessy Advisors, Inc., a firm involved in financial services and investment management, filed a data breach report with the Illinois Attorney General on February 5, 2026. This report confirms a security incident involving unauthorized access to certain company systems.

The specific nature of the breach and the types of personal information involved have not been detailed in the public record. However, as a financial institution, Hennessy Advisors typically collects and maintains sensitive information belonging to its clients as part of its operations.

For individuals who received a direct notification letter from Hennessy Advisors, Inc., it indicates that your personal information was likely contained within the impacted files. The Illinois Attorney General's office currently lists this case as "investigating," meaning the full scope and details are still being determined.

It is crucial to review any notification letter you receive from Hennessy Advisors very carefully. This document should provide more specific information about the incident and any actions the company recommends you take to protect your data. Monitoring your financial accounts for any suspicious activity is a general recommended step in such situations.

Understanding your position after a data security incident can be complex. If you have received a data breach notification from Hennessy Advisors, Inc., you may wish to consider a free review of your situation to understand potential next steps.

If a notification letter about this breach reached you, see every Illinois data breach on file or browse all cases.