Anthem
Data breach via Conduent affecting some Anthem insurance members
Law Firm Data Breaches (10669 indexed)
Ransomware attack shut down computer network; surgeries canceled, clinics closed
Ransomware attack shut down computer network; surgeries canceled, clinics closed
McLaren Health Care
Two ransomware breaches in 2023-2024 affecting 3.2M victims
Multiple (Credential compilation)
149 million passwords exposed in massive credential leak including 48 million Gmail accounts
Ransomware attack brought down computer network, canceled surgeries and closed clinics
Ransomware attack brought down computer network, canceled surgeries and closed clinics
Ransomware attack shut down computer network, surgeries canceled, clinics closed
Ransomware attack shut down computer network, surgeries canceled, clinics closed
Exposed cloud database
Misconfigured database leaked 3 billion records including SSNs and plaintext passwords
149 million passwords exposed including 48 million Gmail accounts
149 million passwords exposed including 48 million Gmail accounts
Ransomware attack disrupted patient records access and clinic operations for over a week
Ransomware attack disrupted patient records access and clinic operations for over a week
Ransomware attack disabled computer network; surgeries canceled and clinics closed
Ransomware attack disabled computer network; surgeries canceled and clinics closed
Mexican Government (9 agencies)
Single hacker exploited Claude Code and OpenAI ChatGPT to breach 9 federal agencies Dec 2025-Feb 2026
Huntsville Hospital Health System
Patient data compromised through third-party breach affecting multiple facilities
Conduent/Anthem
Data breach impacts some Anthem members; breach contained with no evidence of misuse
Mexican Government
Hacker exploited AI tools to breach 9 federal agencies between Dec 2025-Feb 2026
Ransomware attack brought down computer network; surgeries canceled, clinics closed
Ransomware attack brought down computer network; surgeries canceled, clinics closed
Ransomware attack brought down computer network; surgeries canceled and clinics closed
Ransomware attack brought down computer network; surgeries canceled and clinics closed
Malaysia Airlines
Claimed by Qilin ransomware group on leak site, though no proof or data samples provided
Conduent
Ransomware attack on government contractor exposed at least 25 million records
Ransomware attack shut down computer network, cancelled surgeries and clinics
Ransomware attack shut down computer network, cancelled surgeries and clinics
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
Ransomware attack
Ransomware attack exposed data from Multiethnic Cohort Study including driver's license numbers and voter information
Unknown Cloud Database
Misconfigured database leaked 3 billion records including SSNs and passwords
Multiple organizations (Credential compilation)
149 million stolen passwords exposed publicly, including 48 million Gmail accounts
Anthem (Conduent)
Data breach impacts some Anthem members; Conduent reports breach is contained with no evidence of misuse