University of Pennsylvania
Cybercrime group ShinyHunters leaked confidential donor records and internal files from university.
Federal agencies, state governments, municipalities, and public-sector contractors have become priority targets for nation-state actors and ransomware groups. Below is every government-sector breach LeakTrace has indexed.
Cybercrime group ShinyHunters leaked confidential donor records and internal files from university.
Single hacker exploited Claude Code and ChatGPT to breach 9 federal agencies between Dec 2025-Feb 2026, stealing millions of records
Confidential donor records and internal files leaked by ShinyHunters cybercrime group
Nine federal agencies breached between Dec 2025-Feb 2026; hacker exploited Claude Code and OpenAI platforms
Ransomware attack brought down computer network; surgeries canceled and clinics closed
Ransomware attack on government contractor exposed at least 25M people's data
600,000 customer records exposed via third-party payment processor; ShinyHunters group responsible
Breach impacting Anthem members; contained breach with no evidence of misuse
120,000 patients' data compromised in data breach involving healthcare organization
ShinyHunters leaked 600,000 customer transaction records; data sourced from third-party payment processor
Ransomware attack on government contractor exposed 25+ million people's data
ShinyHunters leaked 600,000+ customer records via third-party payment processor breach in February 2026
Misconfigured database exposed 3 billion records including SSNs and plaintext passwords
600,000 customer transaction records exposed via third-party payment processor breach
Nine federal agencies breached using AI tools (Claude Code, ChatGPT); millions of records stolen
Ransomware attack disrupted patient records access and clinic operations for over a week
ShinyHunters leaked confidential files containing never-before-seen donor records and activity tracking data
ShinyHunters cybercrime group leaked confidential files including donor records and internal documents
Hacker used Claude Code and ChatGPT to steal millions of records from 9 federal agencies (Dec 2025-Feb 2026)
149 million stolen passwords exposed publicly, including 48 million Gmail accounts
Breach impacted some Anthem members; contained with no evidence of misuse or public release
Patient data compromised through third-party breach affecting multiple facilities
ShinyHunters leak exposed 600,000 customer records via third-party payment processor
Ransomware attack disrupted patient record access and clinics operations