Lennar Corp. Discloses Data Breach Impacting Sensitive Personal Information
Lennar Corp., a major U.S. homebuilding company, revealed a data breach in which an unauthorized party accessed its systems using social engineering tactics over a seven-day period from March 24 to March 30, 2026. The intrusion compromised a portion of the company’s information systems, prompting Lennar to secure its networks and engage a third-party forensics team to assess the breach’s scope.
The investigation, completed on July 30, 2026, determined that exposed data may have included names, contact details, dates of birth, Social Security numbers, government IDs, driver’s licenses, financial account information, and health-related data, such as health insurance IDs and medical records.
The breach was first reported to the Nebraska Attorney General, and Lennar posted a public notice on its website. As part of its response, the company offered two years of free identity monitoring services through Kroll, with enrollment available until November 13, 2026. Affected individuals can also contact Lennar’s dedicated helpline for further details.
Source: https://www.claimdepot.com/data-breach/lennar-2026
Lennar cybersecurity rating report: https://www.rankiteo.com/company/lennar
"id": "LEN1786571170",
"linkid": "lennar",
"type": "Breach",
"date": "3/2026",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"{'affected_entities': [{'industry': 'Homebuilding',
'location': 'U.S.',
'name': 'Lennar Corp.',
'type': 'Company'}],
'attack_vector': 'Social Engineering',
'customer_advisories': 'Two years of free identity monitoring services '
'through Kroll (enrollment available until November '
'13, 2026), dedicated helpline for affected '
'individuals',
'data_breach': {'personally_identifiable_information': 'Names, contact '
'details, dates of '
'birth, Social '
'Security numbers, '
'government IDs, '
'driver’s licenses',
'sensitivity_of_data': 'High',
'type_of_data_compromised': ['Personally Identifiable '
'Information',
'Financial Information',
'Health Data']},
'date_detected': '2026-03-24',
'date_resolved': '2026-07-30',
'description': 'Lennar Corp., a major U.S. homebuilding company, revealed a '
'data breach in which an unauthorized party accessed its '
'systems using social engineering tactics over a seven-day '
'period from March 24 to March 30, 2026. The intrusion '
'compromised a portion of the company’s information systems, '
'prompting Lennar to secure its networks and engage a '
'third-party forensics team to assess the breach’s scope. The '
'investigation determined that exposed data may have included '
'names, contact details, dates of birth, Social Security '
'numbers, government IDs, driver’s licenses, financial account '
'information, and health-related data, such as health '
'insurance IDs and medical records.',
'impact': {'data_compromised': 'Sensitive personal information including '
'names, contact details, dates of birth, '
'Social Security numbers, government IDs, '
'driver’s licenses, financial account '
'information, health insurance IDs, and '
'medical records',
'identity_theft_risk': 'High',
'payment_information_risk': 'High',
'systems_affected': 'A portion of the company’s information '
'systems'},
'investigation_status': 'Completed',
'references': [{'source': 'Lennar Corp. Public Notice'}],
'regulatory_compliance': {'regulatory_notifications': ['Nebraska Attorney '
'General']},
'response': {'communication_strategy': 'Public notice on website, '
'notification to Nebraska Attorney '
'General',
'containment_measures': 'Secured its networks',
'third_party_assistance': 'Third-party forensics team engaged'},
'title': 'Lennar Corp. Data Breach Impacting Sensitive Personal Information',
'type': 'Data Breach'}