> JapanHacked_
[Resolved][Severity: Critical][Intrusion]

Gunma Prefecture Education and Culture Foundation: the ticket reservation center of Gunma Kenmin Kaikan was accessed without authorization in July 2019, and emails and passwords of 5,259 members leaked to the dark web

In an intrusion in July 2019, emails and passwords of 5,259 members leaked and were found on the dark web.

Disclosed

2021-06-21

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

What happened

  1. A news outlet pointed out that the data had leaked onto the dark web, and the problem came to light. [1] [2]

  2. It announced the case and began notifying members from 16:30. [1] [2]

Impact

Emails and the passwords assigned at ticket purchase of 5,259 members as of July 2019 leaked from the ticket reservation center on the website of Gunma Kenmin Kaikan (Bay Shop Culture Hall). Access logs were kept for only 90 days. [1] [2]

Timeline

  1. Detected 2021-06-09
  2. Disclosed 2021-06-21
  3. 12 days

Attack or cause

Method
[Intrusion]
Impact
[Data leak]
Entry point
Unknown

Data exposed or at risk

[E-mail address][Passwords]

Organizations involved

Open in organization search

Sources

  1. [1][News]予約センターの個人情報流出か　群馬県教育文化事業団Sankei Shimbun · 2021-06-21
  2. [2][News]不正アクセスで会員情報が流出、ダークウェブに - 群馬県民会館Security NEXT · 2021-06-22