Confirmed

JA Kyosai: misconfiguration briefly exposed other JA policyholder data to administrators

JA Kyosai announced on January 27 that a settings error left other JA policyholder/related personal data viewable to administrators between 08:00 and 09:20 on January 14, 2026.

Last updated: 2026-11-09

Overview

Viewable fields: names, birth dates, addresses, emails and similar. No My Number cards or payment cards. No count (count blank).

Timeline

  1. Occurred
  2. Discovered
  3. Disclosed

Organization response

Per the notice, the organisation investigated and contained the incident, notified individuals and offered monitoring or protective resources.

What you can do

Be wary of emails, SMS or calls impersonating the organisation; do not open links or attachments or enter passwords or card details. Change reused passwords on other services.

Sources

  1. システム設定の不備により個人情報が閲覧可能となっていた事象についてのお詫び全国共済農業協同組合連合会 · 2026-11-09

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