Multiple Sources (Credential Aggregation)
149 million stolen passwords and 48 million Gmail credentials exposed in massive database leak
Education Sector Data Breaches (355861 indexed)
Ransomware attack
Ransomware attack leaked data from Multiethnic Cohort Study including driver's license numbers and voter registration data
Ransomware attack
Ransomware attack impacted clinics and patient records access
Mexican Government (9 agencies)
Single hacker exploited Claude Code and OpenAI ChatGPT to breach 9 federal agencies Dec 2025-Feb 2026
Canada Goose
ShinyHunters leaked 600,000 customer records via third-party payment processor breach
Mexican Government
Single hacker exploited AI tools (Claude Code, ChatGPT) to breach 9 federal government agencies Dec 2025-Feb 2026
Mexican Government Agencies
9 Mexican government agencies breached; attackers used Claude Code and ChatGPT to steal millions of records
Multiple (Credential Leak)
149 million passwords exposed including 48 million Gmail accounts in massive credential leak database
University of Pennsylvania
ShinyHunters leaked confidential files including donor activity records and internal documents
Conduent
25+ million people's personal data stolen from printing/payment/document services company
Canada Goose
600,000+ customer transaction records exposed via third-party payment processor (ShinyHunters)
University of Pennsylvania
ShinyHunters leaked confidential donor records and internal files from GSE
Canada Goose
Over 600,000 customer transaction records stolen by ShinyHunters cybercriminal organization
Conduent
Third-party services vendor breach; handles health plans and back-office administrative work
Mexican Government
Federal government breach exposing millions of records, perpetrated using Claude Code and ChatGPT
Mexican Government Agencies
Nine federal agencies compromised via AI tools (Claude Code and ChatGPT); millions of records stolen Dec 2025-Feb 2026
Credential Database Compilation
149 million passwords and 48 million Gmail accounts exposed
University of Pennsylvania
ShinyHunters leaked confidential donor records and internal files from GSE with years of donor activity
Exposed database
Exposed database leaked 3 billion records including Social Security numbers and plaintext passwords
Mexican Government Agencies
Nine federal agencies compromised by hacker exploiting Claude Code and OpenAI platforms; breach occurred late December 2025-mid February 2026
Canada Goose
ShinyHunters leaked 600,000+ customer records via compromised third-party payment processor
University of Pennsylvania
Cybercrime group ShinyHunters leaked confidential files including donor records and internal documents
Conduent/Anthem
Breach impacted some Anthem members; contained with no evidence of data misuse
Multiple (Credential Leak)
149 million passwords exposed including 48 million Gmail accounts in massive credential database leak