Data Breach Database

Browse publicly disclosed data breaches by affected accounts, date and exposed data types.

2,376
Total Breaches
22.8 Billion
Affected Accounts
1,813
Verified

2,376 breaches · showing 121–132

Breach date
Affected accounts

Breach list

  • Affected4.9 Million

    Charter 2026 Data Breach

    The Charter data breach was confirmed on May 23, 2026, with the exposure of customer communication records associated with telecommunications, broadband, and cable…

    • Email addresses
    • Job titles
    • Names
    • 2 more data types
    • 4 more data types

    Telecommunications

  • AffectedAt least 3,002

    Blank Rome Data Breach

    The 2026 Blank Rome data breach occurred when an attorney was deceived by a caller impersonating IT staff and uploaded files to an external account.

    • Special-category data:Medical information
    • 12 more data types

    Legal

  • Affected54.2 Thousand

    Fox Rothschild Data Breach

    The Fox Rothschild data breach affected 54,244 people in a May 21, 2026 incident involving names and Social Security numbers.

    • Names
    • Social security numbers
    • 1 more data type

    Business Services

  • AffectedNot disclosed

    GitHub Internal Repositories 2026 Data Breach

    The GitHub Internal Repositories 2026 data breach began when a GitHub employee installed a poisoned Nx Console Visual Studio Code extension created through the TanStack…

    • Internal repository data
    • 1 more data type

    Technology

  • Affected15 Million

    DentaQuest 2026 Data Breach

    The DentaQuest data breach affected 15 million people in a May 17-19, 2026 incident involving identity, medical, and health-insurance information.

    • Special-category data:Protected health information
    • 10 more data types

    Healthcare

  • AffectedNot disclosed

    Wallace Saunders 2026 Data Breach

    The Wallace Saunders 2026 data breach involved unauthorized access to the Kansas-based law firm's network from May 16 through May 18, 2026.

    • Special-category data:Medical information
    • 7 more data types

    Legal

  • Affected12.2 Million

    KDDI ISP 2026 Data Breach

    The KDDI ISP 2026 data breach resulted from exploitation of a third-party software flaw in the shared email platform KDDI developed for internet service providers.

    • Email addresses
    • Passwords

    Telecommunications

  • AffectedNot disclosed

    SM Energy 2026 Data Breach

    SM Energy Company is a United States oil and natural gas exploration and production company. A notification filed with the California Attorney General lists May 15, 2026…

    • Social security numbers
    • Names
    • 1 more data type

    Energy

  • AffectedAt least 530

    CNO Services Data Breach

    The 2026 CNO Services data breach was a vishing attack that occurred on May 15, 2026 and affected at least 530 people.

    • Names
    • Social security numbers
    • 1 more data type
    • 2 more data types

    Finance

  • AffectedAt least 29,802

    AssetMark Data Breach

    The 2026 AssetMark data breach involved the unauthorized use of certain employee login credentials and the download of files containing customer information.

    • Names
    • Social security numbers
    • 1 more data type

    Financial Services

  • AffectedNot disclosed

    Youth Home Data Breach

    The 2026 Youth Home data breach is a confirmed incident in which an employee email inbox was accessed without authorization on May 14, 2026, exposing personal and health…

    • Special-category data:Medical information
    • Special-category data:Diagnoses
    • 5 more data types
    • 6 more data types

    Healthcare

  • Affected2

    OpenAI TanStack 2026 Data Breach

    The OpenAI TanStack 2026 data breach occurred when malicious TanStack packages in the Mini Shai-Hulud supply-chain campaign affected two OpenAI employee devices…

    • Limited credential material
    • 2 more data types

    Technology

All Breaches (A–Z) →