1MinorPossibleAnnounced
User information of about 139,000 people, mainly names and business emails, was viewable by system users, possibly since around 2021. The issue was found on April 23, 2026.
This incident was imported from a dataset that compiles public announcements, and we are still checking it against the sources. Counts and causes will be updated after the check. Sources are in Japanese.
| Data | Status | Count | Group | Evidence |
|---|---|---|---|---|
| Email address | Was publicly accessible | about 139,000 people | — | Source(opens in a new tab) |
| Name | Was publicly accessible | about 139,000 people | — | Source(opens in a new tab) |
Counts are the figures the organization announced. Because the same person may be counted more than once, we do not add the rows together.
General steps based on the type of data involved. Check the organization’s notice or help line to see whether you are affected.
Picked from the cause of the incident: tools that help you check your own systems for the same kind of weakness, or spot the warning signs.
An audit tool that reads the configuration of AWS, Azure, Google Cloud, and other clouds and lists the settings that fail security standards.
A scanner that finds vulnerabilities, misconfigurations, and embedded secrets in container images, code, and Kubernetes.
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