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Data breach

125,788 customer email addresses exposed at five Kewpie Group companies

First reported · Last reported · 1 related reports

SpilloverSpillover from the Arara incident · View original incident →

The breach of Arara’s email service also exposed 125,788 customer email addresses at five Kewpie Group companies. Those affected had received automated replies to campaign entries, inquiries and similar submissions, and the group suspended automated emails and began notifying them individually.

Key facts

Affected organization
Kewpie Group
Original incident
Arara email service hack exposes 81.33 million email addresses
Incident type
Data breach
Occurred / detected
2026-11-08
Scale of damage
125,788 customer email addresses
Cause / method
Breach of Arara’s email service
Location
Japan

If your data was exposed

Exposed dataEmail

  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. The exposure of customer email addresses at five Kewpie Group companies was disclosed, along with the suspension of automated emails and the start of individual notifications.

Original incident

This is spillover from the Arara incident.

  • Data breachAraraKnock-on victims: 25

    Arara email service hack exposes 81.33 million email addresses

    81.3MImpact: 81,329,467 email addresses and some customers' member information

    Japan's Arara Message email delivery service was breached through a web server vulnerability, exposing email addresses and some customers' member information. Further investigation put the number of unique email addresses exposed at 81,329,467. The attacker also abused the service to send up to approximately 7.13 million emails impersonating credit card companies, and the company isolated the servers and completely suspended its email delivery service.

    Related reports: 20 · last report →

1 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.