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Data breach

Unauthorized access to Arara raises email leak concerns in Yaita

First reported · Last reported · 3 related reports

SpilloverSpillover from the Arara incident · View original incident →

Unauthorized access to email distribution provider Arara raised concerns that email addresses associated with the city of Yaita may have been exposed. On November 13, it emerged that email addresses had been leaked in four cities and towns in Tochigi Prefecture. The specific scale of the damage in Yaita and details of its response have not been confirmed.

Key facts

Affected organization
City of Yaita
Original incident
Arara email service hack exposes 81.33 million email addresses
Incident type
Data breach
Occurred / detected
Not confirmed
Scale of damage
Not confirmed
Cause / method
Unauthorized access to email distribution provider Arara
Location
Japan

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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. A possible leak of email addresses associated with Yaita came to light in connection with unauthorized access to Arara.
  2. Email address leaks affecting four cities and towns in Tochigi Prefecture came to light.

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 →

3 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.