Cyber Incident Victim: Hightower Holding
Date:
Mar 2026
Location:
United States of America
Summary
Hightower Holding experienced a data breach that compromised the personal information of over 131,000 clients, exposing their Social Security Numbers. The incident, located in Chicago, Illinois, was noted in a listing of ransomware attacks affecting organizations across multiple sectors. The exposed Social Security Numbers are considered sensitive personal information.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 1 technique |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
In March 2026, Hightower Holding, based in Chicago, Illinois, United States, experienced a data breach that affected 131,483 of its clients. The breach resulted in the exposure of Social Security Numbers belonging to those individuals. The incident was recorded in a compilation of ransomware attacks and cyber attacks for the month of March 2026. The location of the organization’s headquarters is Chicago, Illinois. The breach was identified as part of a broader listing of security incidents affecting various sectors during that period.
The entry for Hightower Holding appears alongside other reported breaches and ransomware events from March 2026, indicating its inclusion in the timeline of notable cyber incidents. The disclosed information specifies that the compromised data consisted specifically of Social Security Numbers. No further details regarding the attack vector, threat actor identity, or remediation efforts are provided in the source material. The breach is noted for the scale of personal data exposure, affecting over one hundred thousand individuals. The record serves as a reference point for the frequency and magnitude of data security events observed in early 2026.