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Marathon Health data exported after an attacker posed as IT staff

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Made public · 5,684,735 people

What leaked7

Hard to replace

  • Health insurance or Medicare number
  • Home or delivery address
  • Other profile data

Permanent

  • Health information
  • Social Security number
  • Date of birth
  • Full name
  • Health informationmedical information
  • Health insurance or Medicare numberhealth insurance information · the filing does not name an ID number
  • Other profile datacontact information · types not stated

To-dos6 · about 2 h in all

  1. Freeze your credit at Equifax, Experian and TransUnionabout 30 minfreeStops: credit in your name (opens in a new tab)
  2. Get an IRS Identity Protection PINabout 20 minStops: tax refund fraud (opens in a new tab)
  3. Place a fraud alert on your credit reportsabout 10 minfreeLimits harm from: credit in your name (opens in a new tab)
  4. Check your credit reports every week, freeabout 20 minfreeHelps you notice: credit in your name (opens in a new tab)
  5. Freeze your NCTUE phone and utility fileabout 10 minfreeLimits harm from: phone or utility account (opens in a new tab)
  6. Check your health insurance statements for care you did not getabout 15 minHelps you notice: medical care in your name (opens in a new tab)
Company
Marathon Health
When it happened
–
Company detected it
Made public
Notice
Leak confirmed
Affected
5,684,735 people · total in Marathon Health's report to the Texas attorney general

How the facts developed

  1. Company letter: an alert of suspicious activity on August 24, 2026; on September 9, 2026 Marathon Health confirmed that personal information was taken

Sources