Data Breach Database

81,039 breaches indexed. Browse by name or use the alphabet filter below.

• Odido Data BreachOdido
  2026
• Orchids Data BreachOrchids
  2026
• OpenAI Data BreachOpenAI
  2026
• Olympique Marseille confirms 'attempted' cyberattack after data leakthreat actor claimed on Monday that it
  2026
• OdidoOdido
  688K2026
• Odido data breach exposes personal info of 6.2 million customersOdido data
  6.2M2026
• Odido Data Breach (2026)Odido
  893K2026
• One Community Health Data Breach (2026)One Community Health
  4K2026
• OCAT, LLC dba Evoke Wellness at Hilliard Data Breach (2025)OCAT, LLC dba Evoke Wellness at Hilliard
  2K2025
• Ochsner LSU Health – Regional Urology Data Breach (2025)Ochsner LSU Health – Regional Urology
  5K2025
• Operation Endgame 3.0Operation Endgame 3.0
  2.0M2025
• Optum Financial Services Data Breach (2025)Optum Financial Services
  2K2025
• OB-GYN Associates, Ltd. dba OBGYN Associates Data Breach (2025)OB-GYN Associates, Ltd. dba OBGYN Associates
  62K2025
• Oglethorpe, Inc. Data Breach (2025)Oglethorpe, Inc.
  92K2025
• OB/GYN Medical Center Associates Data Breach (2025)OB/GYN Medical Center Associates
  2K2025
• OrthoAtlanta LLC Data Breach (2025)OrthoAtlanta LLC
  6262025
• Oregon Specialty Group Data Breach (2025)Oregon Specialty Group
  3K2025
• Orange County Radiation Oncology Medical Group Data Breach (2025)Orange County Radiation Oncology Medical Group
  2K2025
• OmnicurisOmnicuris
  215K2025
• Oliver Street Dermatology Management LLC Data Breach (2025)Oliver Street Dermatology Management LLC
  14K2025
• Operation Endgame 2.0Operation Endgame 2.0
  15.4M2025
• Orthopaedic Specialists of Connecticut Data Breach (2025)Orthopaedic Specialists of Connecticut
  23K2025
• Onsite Mammography Data Breach (2025)Onsite Mammography
  357K2025
• Ocuco Ltd. Data Breach (2025)Ocuco Ltd.
  241K2025
• OCH Regional Medical Center, MS Data Breach (2025)OCH Regional Medical Center, MS
  51K2025
• Oxford University Data BreachOxford University
  2025
• Orange RomaniaOrange Romania
  557K2025
• Orange Data Breach (2025)Orange
  569K2025
• OrthoMinds, LLC Data Breach (2025)OrthoMinds, LLC
  5012025
• Omaha Surgical Center Data Breach (2024)Omaha Surgical Center
  1K2024
• Oklahoma Spine Hospital Data Breach (2024)Oklahoma Spine Hospital
  39K2024
• Omni Family Health Data Breach (2024)Omni Family Health
  468K2024
• OtelierOtelier
  437K2024
• Operation EndgameOperation Endgame
  16.5M2024
• Omni Healthcare Financial Holdings Data Breach (2024)Omni Healthcare Financial Holdings
  17K2024
• Orsini Pharmaceutical Services, LLC Data Breach (2024)Orsini Pharmaceutical Services, LLC
  1K2024
• Odido Data BreachOdido
  2023
• O.D. WYATT HIGH SCHOOL Data Breach (2023)O.D. WYATT HIGH SCHOOL
  2023
• Oak Ridge Associated Universities Data Breach (2023)Oak Ridge Associated Universities
  2023
• OAKWOOD UNIVERSITY Data Breach (2023)OAKWOOD UNIVERSITY
  2023
• OCEAN COUNTY COLLEGE Data Breach (2023)OCEAN COUNTY COLLEGE
  2023
• OGLETHORPE UNIVERSITY Data Breach (2023)OGLETHORPE UNIVERSITY
  2023
• OKLAHOMA CITY UNIVERSITY Data Breach (2023)OKLAHOMA CITY UNIVERSITY
  2023
• OKLAHOMA STATE UNIVERSITY – STILLWATER TULSA Data Breach (2023)OKLAHOMA STATE UNIVERSITY – STILLWATER TULSA
  2023
• Oklahoma State University Data Breach (2023)Oklahoma State University
  2023
• OLATHE EAST HIGH SCHOOL Data Breach (2023)OLATHE EAST HIGH SCHOOL
  2023
• Oregon Department of Transportation Data Breach (2023)Oregon Department of Transportation
  3.5M2023
• OSCEOLA COUNTY SCHOOL FOR THE ARTS Data Breach (2023)OSCEOLA COUNTY SCHOOL FOR THE ARTS
  2023
• OSCEOLA HIGH SCHOOL Data Breach (2023)OSCEOLA HIGH SCHOOL
  2023
• OUR LADY OF THE LAKE UNIVERSITY OF SAN ANTONIO Data Breach (2023)OUR LADY OF THE LAKE UNIVERSITY OF SAN ANTONIO
  2023