UnitedHealthcare
One of the largest healthcare data breaches in American history; multiple companies affected
2026 Data Breaches Year-to-Date (3060 indexed)
Banyumas Regency Indonesia
2M resident records leaked by threat actor
View incident → Indexed 3 weeks, 1 day ago
135K police officer contact records leaked
135K police officer contact records leaked
View incident → Indexed 3 weeks, 1 day ago
Newcastle University
440K admissions records stolen by ExfilSquad
View incident → Indexed 3 weeks, 1 day ago
Valve
Video game publisher and digital distribution giant Valve is notifying Steam hardware customers in Europe that hackers stole their data after hacking its shipping partner, CEVA Logistics. [...]
Navia Benefits Administration
2.7M SSNs and benefits data exfiltrated
View incident → Indexed 3 weeks, 1 day ago
Swiss Federal IT Office
200 government accounts compromised via SharePoint
View incident → Indexed 3 weeks, 2 days ago
Multiple major data breaches since 2013 exposed over 1 billion records
Unlimited Technology Systems
3.8 million people impacted in healthcare software company breach
Quantum Health
Healthcare advocacy vendor breach exposed employees' SSNs via New Era Technology
Tribeca Festival
Data leak exposed contact information for celebrities and hundreds of thousands of records
100K officer and staff contacts leaked
100K officer and staff contacts leaked
View incident → Indexed 3 weeks, 2 days ago
1.26 million patients exposed in PEAR ransomware attack on healthcare billing company
1.26 million patients exposed in PEAR ransomware attack on healthcare billing company
100K officer and staff records exfiltrated
100K officer and staff records exfiltrated
View incident → Indexed 3 weeks, 2 days ago
Bank of Baroda
Alleged major cyberattack representing one of India's biggest corporate data breaches
Used China-made malware USB drives on classified networks, breach unnoticed for nearly a
Used China-made malware USB drives on classified networks, breach unnoticed for nearly a year
100K+ officer and staff records leaked
100K+ officer and staff records leaked
View incident → Indexed 3 weeks, 2 days ago
100K officer contact records leaked
100K officer contact records leaked
View incident → Indexed 3 weeks, 2 days ago
Clinton Health Access Initiative
Ransomware attack by INC_RANSOM group
View incident → Indexed 3 weeks, 2 days ago
Conduent Business Services
62.2M records exposed in healthcare breach
View incident → Indexed 3 weeks, 2 days ago
Instructure (Canvas)
Supply chain breach generating over half of all breach notices in 2026
Alcon
218,395 records exposed — Email addresses, Names, Phone numbers, Physical addresses
View incident → Indexed 3 weeks, 2 days ago
Marquis Fintech
800K personal and financial records compromised
View incident → Indexed 3 weeks, 2 days ago