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Cullen/Frost Bankers, Inc.

ArchivedSubmitted 03/26/2026
State
TX
Covered entity type
Health Plan
Individuals affected
4,698
Business associate present
Yes
Type of breach
Hacking/IT Incident
Location of breached information
Network Server
First seen by InfoSec Signals
9/23/2026
Last seen in OCR export
9/23/2026

OCR description

The covered entity (CE), Cullen/Frost Bankers, Inc., reported that it was notified by its business associate (BA) that the BA experienced a breach of its network that affected the protected health information (PHI) of 4,698 individuals. The PHI involved names, dates of birth, social security numbers, and other identifiers. The CE notified HHS, the media, and the affected individuals. OCR provided technical assistance to the CE regarding the HIPAA Rules.

Change history

  • 9/23/2026Added to OCR's archive list

Source: U.S. Department of Health and Human Services, Office for Civil Rights, Breach Portal. Records are reproduced as published; entity names and figures are OCR's.