All Breaches
Casio Data Breach
In October 2024, Japanese electronics and watchmaker Casio Computer Co. suffered a ransomware attack claimed by the Underground extortion group.
8.5 Thousand
Affected People
6
Data Types
Low
Severity
Oct 27, 2026
Last updated
Exposed Data Types
6- Names
- Email addresses
- Geographic locations
- Account activity
- Education details
- Employee data
About This Breach
According to Casio's official investigation results published in January 2025, the breach exposed personal and corporate data for 8,478 individuals, comprising 6,456 employees, 1,931 business partners, and 91 customers, including names, contact details, employee records, and invoice data.
Verification and editorial method
LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.
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