> JapanHacked_
[Resolved][Severity: Major][Misconfiguration]

Saitama Prefecture: the names of 191 COVID-19 patients were posted on the prefecture's website by mistake for about five hours

While fixing duplicated data in a press release, staff posted a list containing patient names on the site by mistake. A caller pointed it out and the file was replaced.

Disclosed

2021-01-27

Organizations involved

1

Leaked or at risk

191

191

Downtime

Unknown

What happened

  1. From around this time, the names of 191 COVID-19 patients were visible on the website. [1]

  2. By around this time the file in question had been deleted and replaced with the right one. [1]

The prefecture found duplicated information in a press release document and fixed the data on its site, but posted by mistake a list that contained patient names. A phone call from outside revealed it. The prefecture is explaining and apologizing to those concerned. [1]

Timeline

  1. Started 2021-01-25
  2. Disclosed 2021-01-27
  3. 2 days

Attack or cause

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

Data exposed or at risk

[Name][Health data]

Organizations involved

Open in organization search

Sources

  1. [1][News]新型コロナウイルス患者の氏名をサイトに誤掲載 - 埼玉県Security NEXT · 2021-01-27