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nichirei-2026 · Disclosed 2026-07-13

ニチレイ: unauthorized access and impact

A server cyberattack was confirmed; its entry route is undisclosed. 3,308 delivery, 6,849 contact and 43,709 employee/family records leaked; the 53,866-record total is not a person count.

Cause unresolved / undisclosed

Outcome: Confirmed breach

Entry path and evidence

  • Reported fact

    A server cyberattack was confirmed; its entry route is undisclosed.

    [s1]第7報 §§1-3
  • Reported fact

    3,308 delivery, 6,849 contact and 43,709 employee/family records leaked; the 53,866-record total is not a person count.

    [s1]第7報 §§1-3

Timeline

  1. Disclosure date established by the reviewed notice. [s1]

Reported response

  • Reported fact

    Systems were isolated and all sites resumed normal operation on July 24.

    [s1]第7報 §§1-3

Evidence relevant to prevention

Insufficient evidence

Undisclosed entry or patch timing prevents an avoidability assessment. Inspect privileges, retrieval logs, retention and deployed configuration using the linked rules.

Editorial assessment; not a determination of liability. [s1]

Unknowns and AI involvement

AI involvementUnknown

The reviewed disclosures do not establish attacker use of AI.

The initial entry route and duplicate people across the record categories are undisclosed.

Sources

  1. [s1] ニチレイ · Primary source

    ニチレイ：事故に関する公表資料 ↗

    Reviewed 2026-10-09