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Data breach

Benefit One Discount Service Leaks Data of 29,465 Members

First reported · Last reported · 2 related reports

Unauthorised access to the systems of the contractor for Benefit One's Tokukai discount service from 14 to 20 October leaked the personal data of 29,465 users. The leaked information included, depending on the member, name, date of birth, email address and customer number. The service was temporarily suspended, and credentials used to link to the payment system were also changed after they were found to be possibly leaked.

Key facts

Affected organisation
Benefit One
Incident type
Data breach
Occurred / detected
2026-10-14
Scale of damage
Personal data of 29,465 users
Cause / method
Unauthorised access to the service contractor's systems
Location
Japan

If your data was exposed

Exposed dataNameEmailDate of birth

  1. Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organisation’s official website or app.

Timeline

  1. Unauthorised access to the systems of the Tokukai service contractor began.
  2. The confirmed period of unauthorised access ended.
  3. The leak of personal data of 29,465 members, the service suspension and the change of credentials used to link to the payment system were disclosed.

Also affected by this incident

2 related reports

The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.