University of Pennsylvania
ShinyHunters cybercrime group leaked confidential university files including donor records and internal documents
Government Data Breaches (351504 indexed)
Conduent
Ransomware attack on government contractor, 25M+ people affected
Mexican Government Agencies
Nine federal agencies breached between Dec 2025-Feb 2026; hacker exploited Claude Code and OpenAI platforms
Canada Goose
600,000+ customer transaction records exposed via third-party payment processor breach by ShinyHunters
Ransomware attack
Ransomware attack exposed Multiethnic Cohort Study data including driver's license numbers and voter information
Mexican Government Agencies
Nine federal agencies breached via AI tools exploitation (Claude Code and ChatGPT)
Ransomware attack disabled computer network; surgeries canceled and clinics closed
Ransomware attack disabled computer network; surgeries canceled and clinics closed
Mexican Government
Nine government agencies breached via AI tools (Claude Code, ChatGPT) between Dec 2025-Feb 2026, millions of records exposed
Canada Goose
600,000+ customer records leaked via third-party payment processor by ShinyHunters
Canada Goose
ShinyHunters leak exposed 600,000 customer records via third-party payment processor
FirstClass
Australian travel agency customer records allegedly breached and posted on underground forums
Mexican Government (9 agencies)
Single hacker exploited Claude Code and ChatGPT to breach 9 federal agencies; millions of records stolen Dec 2025-Feb 2026
Mexican Government
Nine federal agencies compromised by single hacker using Claude Code and ChatGPT AI tools
Multiethnic Cohort Study data including driver's license numbers and voter registration
Multiethnic Cohort Study data including driver's license numbers and voter registration exposed in ransomware attack
Ransomware attack on hospital network caused surgeries to be canceled and clinics closed
Ransomware attack on hospital network caused surgeries to be canceled and clinics closed
Mexican Government Agencies
Nine federal agencies compromised; millions of records stolen using Claude Code and ChatGPT exploits (Dec 2025-Feb 2026)
Canada Goose
600,000+ customer transaction records exposed via third-party payment processor (ShinyHunters)
University of Pennsylvania
ShinyHunters cybercrime group leaked confidential donor records and internal files including antisemitism documents
Mexican Government (9 agencies)
Single hacker exploited Claude Code and OpenAI's ChatGPT to breach 9 federal agencies, millions of records stolen
Conduent
Ransomware attack on major government contractor exposed at least 25 million records
Ransomware attack
Ransomware attack exposed data from Multiethnic Cohort Study including driver's license numbers and voter information
Mexican Government Agencies
Single hacker using AI tools (Claude Code, ChatGPT) breached 9 federal agencies, stealing millions of records
Conduent
Ransomware attack on government contractor exposed 25+ million records
University of Pennsylvania
Cybercrime group ShinyHunters leaked confidential donor records and internal files