Corona Corporation
Notice (Second Report) — Notification Regarding Possible Personal Data Leak Due to Unauthorized Access to Cloud Service Used by the Company
Unauthorized access to an external cloud service may have resulted in the potential leakage of personal data of up to 24,000 people. The cause is attributed to credential leakage and factors such as lack of multi-factor authentication and weak passwords. No unauthorized use has been confirmed at this time. Responses include disabling and resetting accounts, strengthened measures, enhanced monitoring, and employee training. Management believes the impact on financial results will be minor, but future disclosures should be monitored.
Key Figures
- Approximate number of affected individuals: 24,000 people
- Potential data leakage: The information matches files stored on the external cloud service
- Confirmation status of unauthorized use of information: Unknown → No unauthorized use has been confirmed
AI要約
Overview of the Incident and Cause
Around August 24, 2026, an investigation revealed a possible unauthorized access to a cloud service used by the Company. Credentials for specific accounts were leaked, and traces indicate that data was downloaded. At present, approximately 24,000 people are affected, and no unauthorized use of the information has been confirmed.
Response Status and Future Measures
We have disabled and reset all user accounts for the affected cloud service, suspended compromised accounts, and implemented password strengthening and multi-factor authentication. We are enhancing monitoring, enforcing thorough employee training, reviewing data that may have been exposed, and notifying affected individuals individually. If new disclosure matters arise, we will promptly announce them.
Corona Corporation
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