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Data breach

Wave of Unauthorized Access and Data Leaks at Japanese Companies

First reported · Last reported · 8 related reports

A string of unauthorized access incidents and customer data leaks has been confirmed at Japanese companies. Online security breaches at Tokyo railway operators and an information leak at an Osaka IT company were also reported. A common cause for the individual incidents, the overall scale of the damage and the specific response measures have not been confirmed.

Key facts

Affected organization
Being confirmed
Incident type
Data breach
Occurred / detected
Not confirmed
Scale of damage
Not confirmed
Cause / method
Unauthorized access
Location
Japan

If your data was exposed

  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 organization’s official website or app.

Timeline

  1. An online security breach at Tokyo railway operators was reported.
  2. As unauthorized access spread, further customer data leaks at Japanese companies were reported.
  3. Unauthorized access and personal data leaks in Japan were reported to have surged.
  4. Additional personal data leaks at Japanese companies were reported.
  5. An information leak at an Osaka IT company was reported.

8 related reports

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