Hightower Holding
Data Breach Class Action Lawsuit
Posted: March 24, 2026 -- Hightower Holding data breach class action lawsuit investigation.
Abington Cole + Ellery is investigating the data breach recently announced by Hightower Holding and may be filing a class action lawsuit on behalf of victims.
Hightower Holding Data Breach Summary:
In March of 2026, Hightower Holding disclosed a security incident involving unauthorized access to sensitive data, which took place on or around between January 8, 2026 and January 9, 2026. Approximately 131,000 individuals were affected by the Hightower Holding data breach, and breached data may include, but is not necessarily limited to: name, Social Security number, and driver’s license number. As a result of the data breach, Hightower Holding is offering 12 months of free credit monitoring and/or identity theft protection services to some affected individuals.
FREE CONSULTATION: If you are a victim of the Hightower Holding data breach, and interested in potentially volunteering to serve as a class representative in a class action lawsuit against Hightower Holding, please submit your information here to be considered:
An attorney-client relationship is not formed by submitting information through this website.
Hightower Holding Data Breach Details:
Hightower Holding, LLC was listed on Maine’s public data-breach notification page on March 23, 2026, which appears to be the first public notice that the incident had been formally reported. Public reporting tied to that notice says the breach may affect 131,483 people. Based on those same public summaries, the exposed data may include personal information such as names, Social Security numbers, and driver’s license numbers.
According to the report, the company learned on January 9, 2026, that a user account had been compromised, which led to unauthorized access within its systems. An investigation later found that files were downloaded without authorization between January 8 and January 9, 2026. After identifying the files involved, the company worked with outside cybersecurity, forensic, and data review specialists to determine what information was affected and which individuals were connected to it.
About Hightower Holding:
Hightower Holding, LLC is a Chicago-based financial services holding company at 200 West Madison Street, 25th Floor, Chicago, Illinois 60606. Through wholly owned subsidiaries such as Hightower Advisors, LLC, Hightower Securities, LLC, and Hightower Trust Company, N.A., it operates across investment advisory, brokerage, and trust services in the United States.
For more information about steps you can take to possibly reduce the chances harm arising from a data breach, please review the following article: What are some steps you can take if you've been the victim of a data breach?
If you believe you are a victim of the Hightower Holding data breach, and if you would like to volunteer to serve as a class representative in a class action lawsuit regarding this data breach, please submit your information via the form on this webpage. This website is not associated with nor authorized by Hightower Holding or any affiliated companies. If you have received any other data breach notifications, you may to review Abington Cole + Ellery's current list of data breach investigations.