Confirmed

Nagano Prefecture: bid and public-works evaluation drawings publicly posted with names and lot numbers

On June 25, 2026 staff found names/lot numbers in published bid drawings; posting paused July 2; first notice July 6. July 24 results finalized people counts for bid drawings and public-works evaluation sheets. No secondary harm found.

Last updated: 2026-11-09

Overview

Confirmed people counts are 9,799 (bid info) and 775 (public-works evaluation). Sub-counts are not summed (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. 公開している入札情報等において個人情報が含まれる図面を掲載していた件の調査結果(PDF)長野県 · 2026-11-09
  2. 公開している入札情報等において個人情報が含まれる図面を掲載していたことが判明しました長野県 · 2026-11-09
  3. 公開している入札情報等において個人情報が含まれる図面を掲載していた件の調査結果をお知らせします長野県 · 2026-11-09

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