> JapanHacked_
[Contained][Severity: Major][Insider]

I-Koumuten: a former employee took customer data out improperly and gave it to the new employer

A tip from outside on March 4 revealed that a former employee had given information on customers who requested materials to the new employer. The number has not been published.

Disclosed

2023-03-13

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

What happened

  1. It received information from outside and learned of the leak of customer data. An internal investigation found that a former employee had taken the data out improperly and given it to the company they moved to. [1]

  2. It announced the case. [1] [2]

Impact

The data concerns customers who requested materials and similar: name, address, phone number, email address and others. The number has not been published. It asked the receiving company to return the data and stop using it, and reported the damage to the police. [1] [2]

Timeline

  1. Started, Detected 2023-03-04
  2. Disclosed 2023-03-13
  3. 9 days

Attack or cause

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

Data exposed or at risk

[Name][Postal address][Phone number][E-mail address]

Organizations involved

Open in organization search

Sources

  1. [1][News]【セキュリティ ニュース】元従業員が顧客情報を不正持出、転職先へ提供 - アイ工務店（1ページ目 / 全1ページ）：Security NEXTSecurity NEXT · 2023-03-14
  2. [2][News]アイ工務店の元従業員が顧客情報を転職先に不正持ち出しScanNetSecurity · 2023-03-22 08:05