Kettering Health Data Breach Exposes Social Security Numbers & Health Info

Published
July 27, 2025
Updated
October 19, 2026
Kettering Health Data Breach Exposes Social Security Numbers & Health Info
Kettering Health

On May 20, 2025, Kettering Health discovered suspicious activity in its network that led to the exposure of sensitive information belonging to current and former patients, as well as affiliates.

The unauthorized access occurred between April 9 and May 20, 2025. During this period, cybercriminals infiltrated Kettering Health’s network, viewing and potentially taking files and folders without authorization. The incident resulted in a system-wide outage that disrupted hospital operations, canceled procedures, and impacted call center services.

The breach exposed a range of personally identifiable information (PII) and protected health information (PHI) including names, contact information, Social Security numbers, patient identification numbers, medical record numbers, medical information, treatment information, diagnosis information, health insurance information, driver’s license or state identification numbers, financial account information, education records, and dates of birth.

The breach affected 1,695,382 individuals, according to the U.S. Department of Health and Human Services.

Kettering Health's response

Kettering Health has set up a dedicated assistance line at 855-202-8326, available Monday through Friday, 9 a.m. to 9 p.m. Eastern Time (excluding U.S. holidays). The company encourages all individuals who may be impacted to remain vigilant by monitoring account statements, reviewing free credit reports, and watching for suspicious activity or errors in their Explanation of Benefits.

Kettering Health advises affected individuals to consider placing a fraud alert or credit freeze on their credit files to help prevent unauthorized use of their information. Details on how to request a free credit report and contact information for the three major credit bureaus—Equifax, Experian, and TransUnion—are provided in the official notice.

Types of INFORMATION affected
  • Names
    Names
  • Social security numbers
    Social Security Numbers
  • Dates of birth
    Dates of Birth
  • Addresses
    Addresses
  • Government IDs
    Government IDs
  • Medical Information
    Medical Info
  • Financial Info
    Financial Info
  • Affected information types not yet disclosed

Notice Letter

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Affected Entity
Kettering Health
Consumers Notification date
Date of Breach
between April 9, 2025, and May 20, 2025
Breach Discovered Date
May 20, 2025
Total People Affected
1695382
Information Types Exposed
  • current and/or former patients’ name
  • individuals’ names
  • contact information
  • Social Security numbers
  • patient identification numbers
  • medical record numbers
  • medical information
  • treatment information
  • diagnosis information
  • health insurance information
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