The California Office of the Attorney General disclosed a data breach at Signature Healthcare Services LLC, occurring between January 27–28, 2024, and reported on October 4, 2024. Unauthorized actors gained access to sensitive patient data, including names, dates of birth, medical record numbers, and other healthcare-related information. The incident disrupted IT system operations, prompting an investigation with law enforcement involvement. The breach exposed highly confidential medical and personal details, posing risks of identity theft, fraud, and misuse of health records. Given the nature of the compromised data protected health information (PHI) the incident falls under severe regulatory scrutiny, potentially violating HIPAA and other privacy laws. The operational disruption further compounded the impact, affecting service continuity for patients and providers. While the exact scale of the breach remains undisclosed, the exposure of such sensitive data underscores critical vulnerabilities in the organization’s cybersecurity defenses, with long-term reputational and financial repercussions likely.
Source: https://oag.ca.gov/ecrime/databreach/reports/sb24-592904
TPRM report: https://www.rankiteo.com/company/signature-healthcare-services
"id": "sig200090625",
"linkid": "signature-healthcare-services",
"type": "Breach",
"date": "1/2024",
"severity": "100",
"impact": "5",
"explanation": "Attack threatening the organization’s existence"{'affected_entities': [{'industry': 'Healthcare',
'location': 'California, USA',
'name': 'Signature Healthcare Services LLC',
'type': 'Healthcare Provider'}],
'data_breach': {'personally_identifiable_information': True,
'sensitivity_of_data': 'High',
'type_of_data_compromised': ['Personally Identifiable '
'Information (PII)',
'Protected Health Information '
'(PHI)']},
'date_publicly_disclosed': '2024-10-04',
'description': 'The California Office of the Attorney General reported a data '
'breach at Signature Healthcare Services LLC. The breach '
'occurred between January 27 and January 28, 2024, affecting '
"individuals' names, dates of birth, medical record numbers, "
'and other healthcare-related information. The unauthorized '
'access disrupted the operations of IT systems and involved an '
'investigation with law enforcement assistance.',
'impact': {'data_compromised': ['names',
'dates of birth',
'medical record numbers',
'healthcare-related information'],
'operational_impact': 'Disruption of IT system operations',
'systems_affected': ['IT systems']},
'investigation_status': 'Ongoing (with law enforcement assistance)',
'references': [{'date_accessed': '2024-10-04',
'source': 'California Office of the Attorney General'}],
'regulatory_compliance': {'regulatory_notifications': ['California Office of '
'the Attorney '
'General']},
'response': {'law_enforcement_notified': True},
'title': 'Data Breach at Signature Healthcare Services LLC',
'type': 'Data Breach'}