TSU One Holdings Data Breach Exposes Sensitive Personal Information
TSU One Holdings LLC, a Fort Worth, Texas-based utility services and contracting company, recently disclosed a data breach affecting thousands of individuals. The incident was reported to the Texas Attorney General on March 25, 2026, with 2,886 Texas residents confirmed as impacted. The total number of affected individuals nationwide remains undisclosed.
The breach was first detected on January 15, 2026, when the Qilin ransomware group claimed responsibility on the dark web, stating it had exfiltrated data from Texas State Utilities Inc. The exact timeline of the unauthorized access has not been publicly confirmed.
Exposed data includes names, Social Security numbers, driver’s license numbers, government-issued IDs (such as passports), and financial information (including account and payment card details). TSU One Holdings notified affected individuals via U.S. Mail, though limited details are available about the company’s broader response.
While the full scope of the breach remains unclear, the incident underscores the ongoing threat of ransomware attacks targeting critical infrastructure and sensitive personal data.
Source: https://www.claimdepot.com/data-breach/tsu-one-holdings-2026
Tsuda USA Corporation cybersecurity rating report: https://www.rankiteo.com/company/tsuda-usa-corporation
TSU ONE cybersecurity rating report: https://www.rankiteo.com/company/tsuone
"id": "TSUTSU1774657901",
"linkid": "tsuda-usa-corporation, tsuone",
"type": "Ransomware",
"date": "1/2026",
"severity": "100",
"impact": "5",
"explanation": "Attack threatening the organization's existence"{'affected_entities': [{'customers_affected': '2,886 (Texas residents '
'confirmed)',
'industry': 'Utilities',
'location': 'Fort Worth, Texas, USA',
'name': 'TSU One Holdings LLC (Texas State Utilities '
'Inc.)',
'type': 'Utility services and contracting company'}],
'customer_advisories': 'U.S. Mail notifications to affected individuals',
'data_breach': {'data_exfiltration': 'Yes',
'number_of_records_exposed': '2,886 (Texas residents '
'confirmed)',
'personally_identifiable_information': 'Yes',
'sensitivity_of_data': 'High',
'type_of_data_compromised': ['Names',
'Social Security numbers',
'Driver’s license numbers',
'Government-issued IDs '
'(passports)',
'Financial information (account '
'and payment card details)']},
'date_detected': '2026-01-15',
'date_publicly_disclosed': '2026-03-25',
'description': 'TSU One Holdings LLC, a Fort Worth, Texas-based utility '
'services and contracting company, recently disclosed a data '
'breach affecting thousands of individuals. The Qilin '
'ransomware group claimed responsibility for exfiltrating '
'data, including names, Social Security numbers, driver’s '
'license numbers, government-issued IDs, and financial '
'information.',
'impact': {'data_compromised': 'Sensitive personal information, financial '
'information',
'identity_theft_risk': 'High',
'payment_information_risk': 'High'},
'ransomware': {'data_exfiltration': 'Yes', 'ransomware_strain': 'Qilin'},
'references': [{'source': 'Texas Attorney General'}],
'regulatory_compliance': {'regulatory_notifications': 'Reported to Texas '
'Attorney General'},
'response': {'communication_strategy': 'U.S. Mail notifications to affected '
'individuals'},
'threat_actor': 'Qilin ransomware group',
'title': 'TSU One Holdings Data Breach Exposes Sensitive Personal Information',
'type': 'Data Breach, Ransomware'}