Huntsville Hospital Health System
Patient data compromised through third-party breach affecting multiple facilities
Government Data Breaches (352013 indexed)
Mexican Government
Hacker exploited AI tools to breach 9 federal agencies, stole millions of records between Dec 2025 and Feb 2026
Ransomware attack caused clinic closures and disrupted patient records access for over a
Ransomware attack caused clinic closures and disrupted patient records access for over a week
University of Pennsylvania
Cybercrime group ShinyHunters leaked confidential files including donor records and internal documents
Conduent
Ransomware attack on government contractor exposed data affecting at least 25 million people
Unknown (Credential compilation)
149 million stolen passwords exposed publicly, including 48 million Gmail accounts
Mexican Government Agencies
Breach of 9 federal agencies; attacker used AI tools (Claude Code, ChatGPT) to steal millions of records
Multiple (Credential compilation)
149 million passwords exposed in massive credential leak including 48 million Gmail accounts
Mexican Government Agencies
Nine Mexican federal agencies breached by single hacker using Claude Code and OpenAI between Dec 2025-Feb 2026
Multiple platforms
149 million stolen passwords exposed publicly including 48 million Gmail accounts
Ransomware attack disrupted patient records access and clinic operations for over a week
Ransomware attack disrupted patient records access and clinic operations for over a week
Mexican Government Agencies
Nine federal agencies compromised by single hacker exploiting Claude Code and OpenAI platforms
Malaysia Airlines
Claimed by Qilin ransomware group on leak site, though no proof or data samples provided
University of Pennsylvania
ShinyHunters cybercrime group leaked confidential donor records and years of donor activity data
Ransomware attack shut down computer network, canceled surgeries and closed clinics
Ransomware attack shut down computer network, canceled surgeries and closed clinics
Conduent
Ransomware attack on government contractor exposed 25+ million records from multiple data sources
Mexican Government Agencies
9 federal agencies compromised via AI tools (Claude Code, ChatGPT), millions of records stolen
Conduent (Anthem)
Data breach impacted some Anthem health insurance members; contained with no evidence of misuse
Ransomware attack
Ransomware attack exposed driver's license numbers and voter registration data from Multiethnic Cohort Study
Mexican Government Agencies
Nine federal agencies compromised, millions of records stolen using AI tools between Dec 2025-Feb 2026
Mexican Government Agencies
Single hacker exploited Claude Code and ChatGPT to breach 9 federal agencies, millions of records stolen
University of Pennsylvania
ShinyHunters leaked confidential donor records and internal files
Mexican Government
Breach affecting multiple federal agencies between Dec 2025 and Feb 2026, attacker used AI tools Claude and ChatGPT
Ransomware attack disabled computer network, cancelled surgeries and closed clinics
Ransomware attack disabled computer network, cancelled surgeries and closed clinics