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gex-ransomware-2026 · Disclosed 2026-02-06

ジェックス: unauthorized access and impact

Ransomware encrypted company server files; the entry route is undisclosed. 77,619 personal-information records and 1,360 name-only records may have been exposed; exfiltration has not been confirmed.

Cause unresolved / undisclosed

Outcome: Confirmed breach

Entry path and evidence

  • Reported fact

    Ransomware encrypted company server files; the entry route is undisclosed.

    [s1]8月19日報告 §§1-5
  • Reported fact

    77,619 personal-information records and 1,360 name-only records may have been exposed; exfiltration has not been confirmed.

    [s1]8月19日報告 §§1-5

Timeline

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

Reported response

  • Reported fact

    Affected servers were isolated; external investigation and migration to a new environment are underway.

    [s1][s2]8月19日報告 §§1-5

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.

Exact intrusion start, entry method and actual exfiltration remain unconfirmed.

Sources

  1. [s1] ジェックス · Primary source

    ジェックス：事故に関する公表資料 ↗

    Reviewed 2026-10-09

  2. [s2] ジェックス · Primary source

    ジェックス：事故に関する公表資料 ↗

    Reviewed 2026-10-09