Foster City
Ransomware attack forced city computer system offline; state of emergency declared
Finance & Banking Data Breaches (12536 indexed)
Canada Life
Threat actor claimed 5.5 million records allegedly tied to Canada's biggest insurer for sale on cybercrime marketplace
CISA (US Department)
Breached through Cisco vulnerability; FIRESTARTER backdoor allowed persistent access through March 2026
Loblaw
Data breach affecting Canadian customers at Loblaw-owned stores
CISA
US agency breached through Cisco vulnerability; FIRESTARTER backdoor allowed persistent access through March 2026
UK Biobank
Confidential health records exposed online and offered for sale on Chinese website
Ransomware attack
Ransomware attack exposed data from Multiethnic Cohort Study including driver's license numbers and voter IDs
Conduent
Breach compromised personal data of millions nationwide, notifications sent a year later
Ransomware attack caused data
Ransomware attack caused data leak exposing patient information from Multiethnic Cohort Study including driver's license and voter data
Ransomware attack exposing personal data of 1.2 million individuals
Ransomware attack exposing personal data of 1.2 million individuals
Huntsville Hospital Health System
Third-party data breach exposed patient information
Companies House
UK firm records exposed during five-month security issue affecting all registered companies
CareCloud
Healthcare software firm informed SEC of potential patient data leak; electronic health records may have been leaked after system intrusion
UK Biobank
Confidential health records from flagship medical research project exposed online, with data leaked multiple times
Companies House (UK)
Data exposed during five-month security issue affecting UK firm records
GuardDog
Telehealth company accessed and shared patient medical records from Epic platform with law firms without authorization
LexisNexis
Cloud systems breach exposed records of 400K users including federal judges and .gov accounts
CommonSpirit Health
Data breach exposing personal and medical information of 19,027 patient records via healthcare consulting company
UK Biobank
Confidential health records from medical research project exposed online, data offered for sale
Ransomware attack with data
Ransomware attack with data leak including Multiethnic Cohort Study data with driver's license numbers and voter IDs
Companies House UK
Data exposed during five-month security issue affecting UK firm records
Companies House (UK)
Data exposed during five-month security issue; all UK firms urged to check records
UK Biobank
Confidential health records from medical research project exposed online multiple times
UK Biobank
Confidential health records from flagship medical research project leaked multiple times and exposed online