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

NITOMS: an employee fell for smishing, a third party used the account, and information on contacts at business partners may have leaked

On April 30 an employee entered credentials after an SMS posing as an outside company. Names, phone numbers and business card data of partner contacts may have leaked.

Disclosed

2021-05-28

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

What happened

  1. An employee received an SMS posing as an outside company on a work device and entered the account and password by mistake. A third party then accessed that account without authorization. [1]

  2. It reported to the Personal Information Protection Commission. [1]

Impact

Names, company names, phone numbers and business card data of partner contacts may have leaked. The number was not disclosed and the company declined to answer when asked. It explained what happened to the contacts concerned and apologized to them individually. [1]

Timeline

  1. Detected 2021-04-30
  2. Disclosed 2021-05-28
  3. 28 days

Attack or cause

Method
[Phishing]
Impact
[Data leak]
Entry point
Stolen credentials

Data exposed or at risk

[Name][Phone number][Employment]

Organizations involved

Open in organization search

Sources

  1. [1][News]従業員がスミッシング被害、顧客情報流出の可能性 - ニトムズSecurity NEXT · 2021-05-28