Data Breaches

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  2. Marshfield Clinic Health System

    WI, US · Healthcare Provider · Hacking/IT Incident
    36Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Email

  3. Archer Health

    CA, US · Healthcare Provider · Hacking/IT Incident
    4.3Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Network Server

  5. Synthient Credential Stuffing Threat Data

    1.96Baccounts
    Breached Disclosed
    Have I Been Pwned Verified
    • Email addresses
    • Passwords
    During 2025, the threat-intelligence firm Synthient aggregated 2 billion unique email addresses disclosed in credential-stuffing lists found across multiple malicious internet sources. Comprised of email addresses and passwords from previous data breaches, these lists are used by attackers to compromise other, unrelated accounts of victims who have reused their passwords. The data also included 1.3 billion unique passwords, which are now searchable in Pwned Passwords. Working to turn breached data into awareness, Synthient partnered with HIBP to help victims of cybercrime understand their exposure.

  6. Denton MHMR Center

    TX, US · Healthcare Provider · Hacking/IT Incident
    109Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Network Server

  7. Tampa Bay Treatment Associates

    FL, US · Healthcare Provider · Theft
    3.7Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Electronic Medical Record

  8. Beverly Hills Oncology Medical Group

    CA, US · Healthcare Provider · Hacking/IT Incident
    57.7Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Network Server

  9. Judson Center

    MI, US · Healthcare Provider · Hacking/IT Incident
    976people
    Disclosed
    HHS OCR breach portal Official register
    • Network Server

  10. Expert MRI

    CA, US · Healthcare Provider · Hacking/IT Incident
    208.9Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Network Server

  11. Tri Century Eye Care PC

    PA, US · Healthcare Provider · Hacking/IT Incident
    200Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Network Server

  13. Better Vision Eyecare, LLC

    AZ, US · Healthcare Provider · Unauthorized Access/Disclosure
    501people
    Disclosed
    HHS OCR breach portal Official register
    • Email

  14. REACH, Inc

    AK, US · Healthcare Provider · Hacking/IT Incident
    1.2Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Email

  17. VirMedice, LLC

    AZ, US · Business Associate · Hacking/IT Incident
    1Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Network Server

  18. Southwest Urology

    OH, US · Healthcare Provider · Hacking/IT Incident
    1.3Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Network Server

  19. Physicians to Children & Adolescents

    KY, US · Healthcare Provider · Hacking/IT Incident
    9.5Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Network Server

  20. Legacy Health, LLC

    TX, US · Business Associate · Unauthorized Access/Disclosure
    6.5Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Electronic Medical Record

  21. Michael R. Schwartz, MD Inc.

    CA, US · Healthcare Provider · Hacking/IT Incident
    9.8Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Desktop Computer

  22. Express Canna Cards, LLC

    FL, US · Healthcare Provider · Unauthorized Access/Disclosure
    5Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Electronic Medical Record

  23. Modernizing Medicine, Inc.

    FL, US · Business Associate · Hacking/IT Incident
    198.8Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Network Server

  24. Heartland Health Center

    NE, US · Healthcare Provider · Hacking/IT Incident
    43.7Kpeople
    Disclosed
    HHS OCR breach portal Official register
    • Network Server

Breach records: Have I Been Pwned (CC BY 4.0), the HHS OCR breach portal, the Washington State Attorney General and the California Attorney General breach registers (public records). Last synced 22 hours ago.