Nagaoka CityRelocation tour site

1MinorPossibleAnnounced

Five form entries on a relocation tour site may have leaked after unauthorized access to Studio. No leak has been confirmed.

This incident was imported from a dataset that compiles public announcements, and we are still checking it against the sources. Counts and causes will be updated after the check. Sources are in Japanese.

Cause
Via a vendor or service
Sector
Public sector
Operational impact
None

Data involved

DataStatusCountGroupEvidence
NamePossible leak5 records—Source(opens in a new tab)
Email addressPossible leak5 records—Source(opens in a new tab)
Postal addressPossible leak5 records—Source(opens in a new tab)

Counts are the figures the organization announced. Because the same person may be counted more than once, we do not add the rows together.

What users should do

  • Watch for emails and texts pretending to be the company

General steps based on the type of data involved. Check the organization’s notice or help line to see whether you are affected.

Sources

  1. ウェブサイト制作サービス提供事業者への不正アクセスによる個人情報漏えいの可能性についてwww.city.nagaoka.niigata.jp · Published 2026-10-19(opens in a new tab)