Was I affected by a Health Care Service Corporation data breach?

If you received healthcare services from Health Care Service Corporation, you may have been affected by one of their 2 reported breaches. Check your mail for breach notification letters, review your medical records for unauthorized changes, and use our breach checker tool to search for specific incidents.

Was my data affected by the Health Care Service Corporation breach?

If you were a patient of Health Care Service Corporation during the breach period, your data may have been compromised. Check your mail for breach notification letters. You can also contact Health Care Service Corporation directly or file a records request to verify what data was accessed.

What data was exposed in the Health Care Service Corporation breach?

Healthcare data breaches can expose names, dates of birth, Social Security numbers, medical records, insurance information, and financial data. The specific data types vary by incident. Review the breach notification from Health Care Service Corporation for details on what was compromised.

Can I sue Health Care Service Corporation for a data breach?

Whether you can bring or join a claim depends on the incident, governing law, documented harm, filing deadlines, and any court-approved settlement terms. Review current court materials and consult a licensed healthcare data breach attorney for advice about your circumstances.

Request Records

Loading...

Health Care Service Corporation Data Breach History

Health Care Service Corporation has been involved in 2 reported healthcare data breaches affecting 224K patients.

How many data breaches has Health Care Service Corporation had?

Health Care Service Corporation has been involved in 2 reported healthcare data breaches affecting a total of 224K patients. The earliest breach was reported in 2023 and the most recent in 2025. Breach types include: Unauthorized Access/Disclosure, Hacking/IT Incident. If you received care from Health Care Service Corporation, review the timeline below to check if your data may have been compromised.

IllinoisUnauthorized Access/DisclosureHacking/IT Incident

2

Total Breaches

224K

Patients Affected

2023

First Breach

2025

Most Recent

Breach Timeline

2025

Health Care Service Corporation

2025-04-13 · Illinois

medium

3K affectedUnauthorized Access/DisclosureOther

Based on the breach classification and HCSC's operations as a health insurance company, the following types of protected health information may have been exposed: ### Personal Identifiers - Full names - Dates of birth - Social Security numbers - Health insurance member identification numbers - Policy numbers - Home addresses and contact information ### Health Information - Medical history and diagnoses - Treatment information and clinical notes - Prescription medication records - Healthcare provider information - Claims history and healthcare utilization data - Insurance coverage details and eligibility information ### Financial Information - Bank account numbers (if on file for premium payments) - Payment card information - Billing addresses - Claims payment information ### Additional Data - Employment information - Beneficiary relationships and dependent information - Provider network participation details The specific combination of exposed data elements would depend on which systems were accessed and what information was stored in the compromised location.

2023

Health Care Service Corporation

2023-08-21 · Illinois

critical

221K affectedHacking/IT IncidentNetwork Server

While the specific data elements were not detailed in the breach submission, network server compromises at healthcare organizations typically expose: names, dates of birth, Social Security numbers, health insurance member IDs, policy numbers, medical record numbers, diagnoses and treatment information, medication records, laboratory and imaging results, healthcare provider information, billing and claims data, financial account information, and potentially banking details. The exact scope depends on what databases and systems were accessible from the compromised network server and what data the business associate processed or stored.

Search All Breaches

Check other providers in our database

Request Your Medical Records

Verify accuracy after a breach

Data Source: All breach data is sourced from the U.S. Department of Health and Human Services (HHS) Office for Civil Rights (OCR) Breach Portal. Organization names are matched as reported; some entities may appear under different legal names.

Related resources

Health Care Service Corporation Data Breach History

Health Care Service Corporation has been involved in 2 reported healthcare data breaches affecting 224K patients.

How many data breaches has Health Care Service Corporation had?

Health Care Service Corporation has been involved in 2 reported healthcare data breaches affecting a total of 224K patients. The earliest breach was reported in 2023 and the most recent in 2025. Breach types include: Unauthorized Access/Disclosure, Hacking/IT Incident. If you received care from Health Care Service Corporation, review the timeline below to check if your data may have been compromised.

IllinoisUnauthorized Access/DisclosureHacking/IT Incident

2

Total Breaches

224K

Patients Affected

2023

First Breach

2025

Most Recent

Breach Timeline

2025

Health Care Service Corporation

2025-04-13 · Illinois

medium

3K affectedUnauthorized Access/DisclosureOther

Based on the breach classification and HCSC's operations as a health insurance company, the following types of protected health information may have been exposed: ### Personal Identifiers - Full names - Dates of birth - Social Security numbers - Health insurance member identification numbers - Policy numbers - Home addresses and contact information ### Health Information - Medical history and diagnoses - Treatment information and clinical notes - Prescription medication records - Healthcare provider information - Claims history and healthcare utilization data - Insurance coverage details and eligibility information ### Financial Information - Bank account numbers (if on file for premium payments) - Payment card information - Billing addresses - Claims payment information ### Additional Data - Employment information - Beneficiary relationships and dependent information - Provider network participation details The specific combination of exposed data elements would depend on which systems were accessed and what information was stored in the compromised location.

2023

Health Care Service Corporation

2023-08-21 · Illinois

critical

221K affectedHacking/IT IncidentNetwork Server

While the specific data elements were not detailed in the breach submission, network server compromises at healthcare organizations typically expose: names, dates of birth, Social Security numbers, health insurance member IDs, policy numbers, medical record numbers, diagnoses and treatment information, medication records, laboratory and imaging results, healthcare provider information, billing and claims data, financial account information, and potentially banking details. The exact scope depends on what databases and systems were accessible from the compromised network server and what data the business associate processed or stored.

Search All Breaches

Check other providers in our database

Request Your Medical Records

Verify accuracy after a breach

Data Source: All breach data is sourced from the U.S. Department of Health and Human Services (HHS) Office for Civil Rights (OCR) Breach Portal. Organization names are matched as reported; some entities may appear under different legal names.