Open Door Health Center of Illinois Reports Data Breach Affecting 501 Patients
Open Door Health Center of Illinois, a nonprofit primary care and sexual health clinic serving the far western suburbs of Chicago, disclosed a data breach impacting 501 individuals across the U.S. The incident was attributed to INC Ransom, a cybercriminal group that claimed responsibility on May 21, 2026, by posting the stolen data on the dark web.
Details about the breach remain limited, including the exact types of compromised information. However, protected health information (PHI) such as health insurance details, medical records, prescription data, or treatment histories was confirmed to be affected. The breach was officially reported to the U.S. Department of Health and Human Services (HHS) on July 18, 2026.
As of August 4, 2026, Open Door Health Center has not publicly outlined specific remediation steps taken in response to the incident. Affected individuals seeking more information can contact the clinic’s Aurora Health Center (630-264-1819) or Elgin Health Center (847-695-1093), both operating Monday through Friday from 8:30 a.m. to 4:30 p.m.
Source: https://www.claimdepot.com/data-breach/open-door-health-center-2026
Open Door Health cybersecurity rating report: https://www.rankiteo.com/company/open-door-health
"id": "OPE1785868120",
"linkid": "open-door-health",
"type": "Ransomware",
"date": "5/2026",
"severity": "100",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"{'affected_entities': [{'customers_affected': '501',
'industry': 'Healthcare',
'location': 'Far western suburbs of Chicago, Illinois, '
'USA',
'name': 'Open Door Health Center of Illinois',
'type': 'Nonprofit Healthcare Clinic'}],
'customer_advisories': 'Affected individuals advised to contact Aurora Health '
'Center (630-264-1819) or Elgin Health Center '
'(847-695-1093), Monday through Friday from 8:30 a.m. '
'to 4:30 p.m.',
'data_breach': {'data_exfiltration': 'Yes',
'number_of_records_exposed': '501',
'personally_identifiable_information': 'Yes',
'sensitivity_of_data': 'High',
'type_of_data_compromised': 'Protected health information '
'(PHI), health insurance details, '
'medical records, prescription '
'data, treatment histories'},
'date_publicly_disclosed': '2026-07-18',
'description': 'Open Door Health Center of Illinois, a nonprofit primary care '
'and sexual health clinic, disclosed a data breach impacting '
'501 individuals across the U.S. The incident was attributed '
'to INC Ransom, a cybercriminal group that claimed '
'responsibility by posting the stolen data on the dark web.',
'impact': {'data_compromised': 'Protected health information (PHI), health '
'insurance details, medical records, '
'prescription data, treatment histories',
'identity_theft_risk': 'High'},
'initial_access_broker': {'data_sold_on_dark_web': 'Yes'},
'investigation_status': 'Ongoing',
'motivation': 'Financial Gain, Data Exfiltration',
'ransomware': {'data_exfiltration': 'Yes', 'ransomware_strain': 'INC Ransom'},
'references': [{'source': 'U.S. Department of Health and Human Services '
'(HHS)'}],
'regulatory_compliance': {'regulations_violated': 'HIPAA',
'regulatory_notifications': 'Reported to U.S. '
'Department of Health '
'and Human Services '
'(HHS) on July 18, '
'2026'},
'response': {'communication_strategy': 'Affected individuals advised to '
'contact Aurora Health Center '
'(630-264-1819) or Elgin Health Center '
'(847-695-1093)'},
'threat_actor': 'INC Ransom',
'title': 'Open Door Health Center of Illinois Data Breach',
'type': 'Data Breach, Ransomware'}