Ransomware attack
Ransomware attack exposed Multiethnic Cohort Study data including driver license numbers and voter registration
Healthcare Data Breaches (354898 indexed)
Canada Goose
ShinyHunters leaked over 600,000 customer records via third-party payment processor
Anthem/Conduent
Data breach impacting some Anthem members; breach contained with no evidence of misuse or public data release
University of Pennsylvania
ShinyHunters leaked confidential files containing donor records and years of tracked donor activity
Mexican Government (9 agencies)
Single hacker exploited Claude Code and OpenAI's tools to breach 9 federal agencies, stealing millions of records
Mexican Government
Hacker exploited AI tools to breach 9 federal agencies, stole millions of records Dec 2025-Feb 2026
Mexican Government
Nine federal agencies breached through AI tools between December 2025 and February 2026
Multiple (Credential Leak)
149 million passwords exposed including 48 million Gmail accounts in massive credential database leak
KT Corporation
Customer data breach; South Korea fined telco $39 million for personal information exposure
Canada Goose
ShinyHunters leaked 600,000 customer records exposed via third-party payment processor breach in February 2026.
Mexican Government
Hacker breached 9 federal agencies using Claude Code and ChatGPT, stole millions of records Dec 2025-Feb 2026
University of Pennsylvania
ShinyHunters cybercrime group leaked confidential files including years of donor records and internal documents
Conduent
At least 25 million people had personal data stolen including printing, payment, and document processing records
Credential Database Compilation
149 million passwords and 48 million Gmail accounts exposed
Conduent
Third-party services vendor handling health plan data breached
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
Conduent/Anthem
Data breach impacted some Anthem members; breach contained with no evidence of data misuse
Ransomware attack shut down computer network; surgeries canceled and clinics closed
Ransomware attack shut down computer network; surgeries canceled and clinics closed
Conduent/Anthem
Breach impacted some Anthem members; contained with no evidence of data misuse
Mexican Government
Hacker breached 9 federal agencies using Claude and ChatGPT; millions of records affected
Multiple Organizations
149 million passwords exposed including 48 million Gmail accounts in credential leak
Canada Goose
600,000 customer transaction records exposed via third-party payment processor by ShinyHunters
Conduent
Ransomware attack on government contractor exposed at least 25 million people's sensitive data
University of Pennsylvania
Cybercrime group ShinyHunters leaked confidential donor records and internal files from university.