> JapanHacked_
[Contained][Severity: Major][Web app exploit]

Kinokuniya: unauthorized access to magazine delivery sites, and data of up to 9,881 people may have leaked

Prompted by police, it found that database table names had been obtained. Names, addresses and more of up to 9,881 people on three sites on the same server may have leaked.

Disclosed

2023-12-21

Organizations involved

2

Leaked or at risk

9.9K

9,881

Downtime

Unknown

What happened

  1. Police told it of a cyberattack on its Japanese magazine delivery information site, and it began investigating. It found that database table names had been obtained. [2]

  2. It announced the case. It found a vulnerability in part of the sites and said it has been fixed. Its client Fujisan Magazine Service announced the impact the same day. [1] [2]

Impact

Data of 9,881 people in total may have leaked: 294 names from Japanese magazine delivery data, 7,491 records of name, address and phone number from the overseas magazine delivery management system, and 2,096 such records from the academic journal system. There is no trace of the table contents being accessed or the data being taken. Credit card and bank account data are not included. [2] [3]

Fujisan Magazine Service, which had outsourced overseas magazine delivery, said the name, kana, postal code and address of 6,329 subscriptions may be affected. It says it has not confirmed that the outsourced data flowed out. [1]

Timeline

  1. Started, Detected 2023-11-01
  2. Disclosed 2023-12-21
  3. 50 days

Attack or cause

Method
[Web app exploit]
Impact
[Data leak]
Entry point
Web app

Data exposed or at risk

[Name][Postal address][Phone number]

Supply chain

Organizations involved

Open in organization search

Sources

  1. [1][Official]業務委託先での個人情報等漏えいの可能性に関するお知らせFujisan Magazine Service Co., Ltd. · 2023-12-21
  2. [2][News]紀伊国屋書店でサイバー攻撃による不正アクセス被害、最大約1万件の個人情報漏洩かNikkei xTECH · 2023-12-22
  3. [3][News]紀伊国屋書店不正アクセス、合計9,881件の情報流出懸念cybersecurity-jp.com · 2023-12-27
  4. [4][News]紀伊國屋書店に不正アクセス、委託元の富士山マガジンサービスにも影響ScanNetSecurity · 2023-12-26 08:05