> JapanHacked_
[Resolved][Severity: Major][Lost device]

Tokyo Metropolitan Government: a box of education grant survey forms from kindergartens and elementary schools went missing at its Bureau of Citizens, Culture and Sports, along with 3,646 pieces of personal data

A box of 2017 survey forms from 108 kindergartens and 53 elementary schools is missing and was most likely thrown out by mistake with documents to be discarded.

Disclosed

2021-04-27

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

What happened

  1. Staff checked the office and noticed that the storage box holding the survey forms was missing. It had been placed near documents to be discarded, so it was most likely thrown out with them by mistake. [1]

  2. The Tokyo Metropolitan Government announced the case. [1]

Impact

The missing items are the 2017 education grant survey forms of 108 kindergartens and 53 elementary schools, which carried 3,646 pieces of personal data. They included the names, ages, years of service, salaries, days worked, subjects taught, licenses and mutual aid association numbers of 3,328 teaching and other staff. [1]

There were also documents about pupils and parents at 44 elementary schools, with the names, household circumstances, reasons for sudden changes in household finances and tuition reduction records of 44 pupils, and the names, guardians' names, places of residence and lengths of stay of 264 children who had returned from abroad. [1]

Timeline

  1. Detected 2021-04-23
  2. Disclosed 2021-04-27
  3. 4 days

Attack or cause

Method
[Lost device]
Impact
[Data leak]
Entry point
Unknown

Data exposed or at risk

[Name][Employment]

Organizations involved

Open in organization search

Sources

  1. [1][News]個人情報3646件含む教育助成金関連書類が所在不明 - 東京都Security NEXT · 2021-04-27