Hightower Holding LLC Discloses Data Breach Affecting Over 131,000 Individuals
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Hightower Holding LLC, a Chicago-based financial services firm, reports a data breach. The incident was first detected on March 12, 2026.
Hightower secured its systems and hired external experts to conduct a forensic review. The investigation revealed that threat actors originally gained access to the network on January 8, 2026.
The compromised data includes:
- Full names
- Social Security numbers
- Driver’s license numbers
- Dates of birth
- Financial account numbers
The number of affected individuals is 131,483. The nature of the attack is not disclosed. The company began sending written notification letters to impacted individuals on March 23, 2026, and notified relevant law enforcement and regulatory bodies.
The firm is providing affected users with free identity theft protection and credit monitoring services. The company claims it is currently enhancing its data protection policies and implementing additional safeguards to prevent future unauthorized access.
