> JapanHacked_
[Investigating][Severity: Major][Intrusion]

Sankei Living Shimbun: unauthorized access to its servers

On October 16 unauthorized access by a third party to a website run by Sankei Living Shimbun was found. Names and contact details of users of its web member services (Living Web, City Living Web, Machitto and others, including former members) and of its survey system, stored on its servers, may have leaked; the count was under investigation. The company holds no card data. Some web services were suspended. For Mie Prefecture's relocation seminars, which it ran on contract, 156 applicants' names and emails (optionally addresses and phone numbers) and 75 participants' survey answers were affected. Hiroshima Prefecture said on October 23 that names, addresses, phone numbers and more of 1,470 entries to the summer and autumn gift draws of its public relations magazine may have leaked through the server used by Hiroshima Living Shimbun, the magazine's editor; the prefecture was told six days after the intrusion was found.

Disclosed

2026-10-21

Organizations involved

3

Leaked or at risk

1.5K

1,470

Downtime

Unknown

Timeline

  1. Started, Detected 2026-10-16
  2. Disclosed 2026-10-21
  3. 5 days

Supply chain

Organizations involved

Open in organization search

Sources

  1. [1][Official]当社サーバーへの不正アクセスによる個人情報漏えいの可能性とサービスの一時停止に関するお詫びとお知らせ(第一報)Sankei Living Shimbun · 2026-10-21
  2. [2][Official]【お詫び】三重県移住セミナー運営事業者のサーバーへの不正アクセスについてMie Prefectural Government · 2026-10-22
  3. [3][News]三重県移住セミナーに申し込んだ156人分の情報流出か 不正アクセス受けた疑いThe Chunichi Shimbun · 2026-10-22
  4. [4][News]百五銀サービス一部停止 PHP脆弱性The Yomiuri Shimbun · 2026-10-23
  5. [5][Official]ひろしま県民だよりHiroshima Prefecture · 2026-10-23
  6. [6][News]広報誌「ひろしま県民だより」のプレゼント応募者の個人情報漏えいか のべ1470人分の氏名や住所などTV Shin-Hiroshima · 2026-10-23
  7. [7][News]「ひろしま県民だより」プレゼント申込みの個人情報が漏洩した可能性 委託する広島リビング新聞社の親会社に不正アクセスRCC Broadcasting · 2026-10-23