Ransomware attack
Ransomware attack impacted patient records access; clinics reopened after resuming normal operations
Healthcare Data Breaches (355853 indexed)
Canada Goose
ShinyHunters leaked 600K+ customer records via third-party payment processor
Conduent
At least 25 million people had personal data stolen from printing, payment, and document management company
Massive Credential Compilation
149 million passwords exposed including 48 million Gmail accounts publicly exposed
Conduent
25+ million people's personal data stolen from printing/payment/document services company
Multiple Organizations
149 million passwords exposed in massive credential leak, including 48 million Gmail accounts
Mexican Government Agencies
Hacker breached 9 federal agencies using AI tools (Claude/ChatGPT) exposing millions of records
Mexican Federal Government
Nine agencies breached via AI platform exploits (Claude Code, ChatGPT); millions of records stolen
Multiethnic Cohort Study data including driver's license numbers and voter registration
Multiethnic Cohort Study data including driver's license numbers and voter registration leaked via ransomware
Credential Database (Unknown Source)
149 million stolen passwords publicly exposed, including 48 million Gmail accounts
Mexican Government Agencies
9 federal agencies breached using Claude Code and ChatGPT to steal millions of records (Dec 2025-Feb 2026)
Unknown cloud database
Misconfigured database exposed 3 billion records including SSNs and plaintext passwords
Mexican Government Agencies
Nine federal agencies compromised between Dec 2025-Feb 2026 via AI tools exploitation (Claude Code, ChatGPT)
Mexican Government Agencies
Single hacker breached 9 federal agencies using Claude Code and OpenAI's ChatGPT between Dec 2025 and Feb 2026
Canada Goose
600,000+ customer transaction records allegedly stolen by ShinyHunters via third-party payment processor
Various (Credential Compilation)
149 million stolen passwords found publicly exposed online including 48 million Gmail accounts
Ransomware attack shut down computer network, canceled surgeries and closed clinics
Ransomware attack shut down computer network, canceled surgeries and closed clinics
Ransomware attack brought down computer network, causing surgeries to be canceled and
Ransomware attack brought down computer network, causing surgeries to be canceled and clinics closed
University of Pennsylvania
Confidential donor records and internal files leaked by ShinyHunters cybercrime group
University of Pennsylvania
ShinyHunters cybercrime group leaked confidential university files including donor records and internal documents
Conduent
Ransomware attack on government contractor, 25M+ people affected
FirstClass
Australian travel agency alleged data breach exposing customer records
Ransomware attack brought down computer network; surgeries canceled, clinics closed
Ransomware attack brought down computer network; surgeries canceled, clinics closed
Conduent/Anthem
Data breach impacted Anthem members; Conduent reported contained breach with no evidence of public data release