Data Breaches

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  1. Harvard

    harvard.edu
    850.5Kaccounts
    Breached Disclosed
    Have I Been Pwned Verified
    • Charitable donations
    • Citizenship statuses
    • Dates of birth
    • Education levels
    • Email addresses
    • Employers
    • Ethnicities
    • +11 more
    In November 2025, Harvard University suffered a data breach later linked to a ShinyHunters "pay or leak" extortion attempt. The data contained 851k unique email addresses relating to the university's alumni and fundraising systems, along with extensive profile information for donors, alumni, parents and some faculty, staff and students. In Harvard's disclosure notice, the university stated that the breach impacted "personal information such as email addresses, telephone numbers, home and business addresses, event attendance, details of donations to the University, and other biographical information pertaining to University fundraising and alumni engagement activities".

  3. NCH Corporation

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  4. Aesto, LLC

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  5. The Nueva School

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  6. El Camino Health

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  7. Baanx US Corp.

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  8. EyeMed Vision Care, LLC

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  9. HCA Healthcare, Inc.

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  11. Revolve Group, Inc.

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  12. Marathon Health

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  16. Photon Health

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  18. Baker & McKenzie LLP

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  19. Directed Trust Company

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  20. Indico Data Solutions

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  21. Tradier Brokerage Inc.

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  22. Hitec Group USA

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

  23. AfD

    afd.de
    345.4Kaccounts
    Breached Disclosed
    Have I Been Pwned Verified Sensitive
    • Email addresses
    • Email messages
    In September 2026, the German political party Alternative für Deutschland (AfD) suffered a data breach which exposed 345k unique email addresses. The following month, hundreds of gigabytes of data containing hundreds of thousands of emails and attachments was published online, with searchable AI-generated summaries and downloadable original files. An analysis of the incident reported that the breach was detected as early as 9 September, with a subsequent intrusion occurring five days later. In its public statement, AfD attributed the breach to an attack on a hosting provider, identified in subsequent reporting as the party-owned Alternita Dienstleistungs GmbH.

  24. USForex Inc.

    CA, US
    —not stated
    Breached Disclosed
    California AG Official register

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 10 hours ago.