In the past 6 weeks since the beginning of 2026, some significant incidents of data breaches have been reported.
These breaches have affected a massive number of customers. We look at the impact summary of data breaches reported from 1 January 2026 to 15 February 2026.
The data pertaining to these data breaches is presented below.
Data Breaches in 2026
The biggest data breaches are reported below. The data lists the breach with number of uses affected by the data breach.
- Chat & Ask AI: 25M users (35.7%) – Firebase misconfiguration
- Conduent: 15.4M+ (22.0%) – Ransomware attack
- Match Group: 10M+ (14.3%) – Okta SSO compromise
- Odido: 6.2M (8.9%) – CRM system breach
- Yale Health: 5.6M (8.0%) – Healthcare data
- TransUnion: 4.4M (6.3%) – Salesforce breach
- Others: 3.4M (4.9%)
This data has also been displayed in the graph below. Please feel free to share the graph for reporting with a link back to the page.
We will update this page with the updated data breach data.