Harper Executive Group Data Breach Exposes Sensitive Personal Information
Shamis & Gentile P.A., a class action law firm specializing in data breach cases, is investigating a security incident at Harper Executive Group Inc., an executive-search and professional-services firm based in San Antonio, Texas. The breach, discovered on January 14, 2026, involved unauthorized access to sensitive personally identifiable information (PII) dating back to March 3, 2025.
Harper Executive Group, founded in 1986, serves clients in the consumer goods and professional services sectors. After detecting a network disruption, the company launched an internal investigation with third-party specialists, confirming that personal data had been compromised. The review concluded in January 2026, and notifications were sent to affected individuals via U.S. mail and a dedicated website starting March 18, 2026. The breach was also reported to state attorney general offices in Texas, Massachusetts, and Maine.
At least 5,672 Texas residents, 14 in Massachusetts, and one in Maine were impacted, though the total number of affected U.S. individuals remains undisclosed. Exposed data includes:
- Names
- Social Security numbers
- Driver’s license and government-issued ID numbers
- Financial account and payment card details
- Medical and health insurance information
- Dates of birth
- State ID card numbers
Legal representatives are reviewing potential compensation claims for those affected. The incident underscores the risks of unauthorized data access in professional services firms.
Source: https://www.claimdepot.com/investigations/harper-executive-group-data-breach-2026
The Harper Group cybersecurity rating report: https://www.rankiteo.com/company/the-harper-group
"id": "THE1774284546",
"linkid": "the-harper-group",
"type": "Breach",
"date": "3/2025",
"severity": "100",
"impact": "5",
"explanation": "Attack threatening the organization's existence"{'affected_entities': [{'customers_affected': '5,687+ (5,672 Texas residents, '
'14 Massachusetts residents, 1 '
'Maine resident)',
'industry': 'Executive-search and '
'professional-services',
'location': 'San Antonio, Texas, USA',
'name': 'Harper Executive Group Inc.',
'type': 'Company'}],
'customer_advisories': 'Notifications sent via U.S. mail and dedicated '
'website starting March 18, 2026',
'data_breach': {'number_of_records_exposed': '5,687+',
'personally_identifiable_information': 'Yes',
'sensitivity_of_data': 'High',
'type_of_data_compromised': ['Names',
'Social Security numbers',
'Driver’s license and '
'government-issued ID numbers',
'Financial account and payment '
'card details',
'Medical and health insurance '
'information',
'Dates of birth',
'State ID card numbers']},
'date_detected': '2026-01-14',
'date_publicly_disclosed': '2026-03-18',
'description': 'Shamis & Gentile P.A. is investigating a security incident at '
'Harper Executive Group Inc., an executive-search and '
'professional-services firm, where unauthorized access to '
'sensitive personally identifiable information (PII) was '
'discovered. The breach involved data dating back to March 3, '
'2025, and was detected on January 14, 2026. The company '
'confirmed the compromise of personal data after an internal '
'investigation with third-party specialists. Notifications '
'were sent to affected individuals starting March 18, 2026.',
'impact': {'data_compromised': 'Sensitive personally identifiable information '
'(PII)',
'identity_theft_risk': 'High',
'legal_liabilities': 'Potential compensation claims under review',
'operational_impact': 'Network disruption',
'payment_information_risk': 'High'},
'investigation_status': 'Concluded',
'references': [{'source': 'Shamis & Gentile P.A.'}],
'regulatory_compliance': {'legal_actions': 'Potential compensation claims '
'under review',
'regulatory_notifications': ['Texas Attorney '
'General',
'Massachusetts '
'Attorney General',
'Maine Attorney '
'General']},
'response': {'communication_strategy': 'U.S. mail and dedicated website',
'incident_response_plan_activated': 'Yes',
'third_party_assistance': 'Third-party specialists'},
'title': 'Harper Executive Group Data Breach Exposes Sensitive Personal '
'Information',
'type': 'Data Breach'}