Data Breach Database

88,328 breaches indexed. Browse by name or use the alphabet filter below.

• UniversityOfNottingham Data BreachUniversityOfNottingham
  455K2026
• Under Armour Data BreachUnder Armour
  2026
• University of Nottingham Data BreachUniversity of Nottingham
  434K2026
• University of Nottingham Data BreachUniversity of Nottingham
  2026
• UK Free Speech Union Data BreachUK Free Speech Union
  2026
• University of Hawaii Cancer Center Data BreachUniversity of Hawaii Cancer Center
  2026
• University of Utah Data BreachUniversity of Utah
  2026
• U.S. Cybersecurity and Infrastructure Security Agency (CISA) Data BreachU.S. Cybersecurity and Infrastructure Security Agency (CISA)
  2026
• Unknown Data BreachUnknown
  2026
• Udemy Data Breach (2026)Udemy
  1.4M2026
• Unknown Organization Data BreachUnknown Organization
  2026
• UH Cancer Center data breach affects nearly 1.2 million peopleafter discovering the
  1.2M2026
• University of Hawaiʻi Cancer Center confirms data leak following ransomware attackPart of the
  2026
• US Healthcare Diagnostic Firm Says 140,000 Affected by Data BreachAffected by Data
  2026
• Under ArmourUnder Armour
  72.7M2025
• University of Pennsylvania Data Breach (2025)University of Pennsylvania
  1K2025
• UnderArmour Data Breach (2025)Under Armour
  73.1M2025
• UK Central Government Sector Breach BI77367 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI77525 (Q4 2025)UK Central Government Sector (ICO)
  5002025
• UK Central Government Sector Breach BI77795 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI77853 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI77859 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI77863 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI77924 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI77931 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI77993 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI78029 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI78089 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI78155 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI78230 (Q4 2025)UK Central Government Sector (ICO)
  50K2025
• UK Central Government Sector Breach BI78315 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI78377 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI78497 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI78680 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI78722 (Q4 2025)UK Central Government Sector (ICO)
  5K2025
• UK Central Government Sector Breach BI78791 (Q4 2025)UK Central Government Sector (ICO)
  5002025
• UK Central Government Sector Breach BI78796 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI78929 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI79086 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI79087 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI79091 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI79096 (Q4 2025)UK Central Government Sector (ICO)
  5K2025
• UK Central Government Sector Breach BI79213 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI79424 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI79447 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI79448 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI79549 (Q4 2025)UK Central Government Sector (ICO)
  2025
• UK Central Government Sector Breach BI79580 (Q4 2025)UK Central Government Sector (ICO)
  5002025
• UK Central Government Sector Breach BI79719 (Q4 2025)UK Central Government Sector (ICO)
  52025
• UK Central Government Sector Breach BI79994 (Q4 2025)UK Central Government Sector (ICO)
  502025