> JapanHacked_
[Resolved][Severity: Moderate][Credential abuse]

Bioengineering Lab: an employee mail account with a weak password was taken over and used to send spam, and about 2,500 received emails may have leaked

An employee mail account was accessed without authorization and spam quoting past exchanges was sent; about 2,500 emails may have leaked.

Disclosed

2021-03-10

Organizations involved

1

Leaked or at risk

2.5K

2,500

Downtime

Unknown

What happened

  1. Around 1:15 a.m., spam quoting emails exchanged with the company was sent from an outside email address. [1] [2]

  2. The same kind of spam was sent again from 11:45 p.m. on March 9 to about 12:30 a.m. on March 10. The company announced the case the same day. [1] [2]

Impact

The cause is believed to be an easily guessed password. About 2,500 emails and email addresses received between February 16 and 24 and between February 26 and March 2 and kept on the mail server may have leaked. What the emails contained was not disclosed. [1] [2]

The company confirmed there was no intrusion into its internal network and no leak other than email, and changed the passwords of all accounts it manages. [2]

Timeline

  1. Detected 2021-02-25
  2. Disclosed 2021-03-10
  3. 13 days

Attack or cause

Method
[Credential abuse]
Impact
[Data leak]
Entry point
Stolen credentials

Data exposed or at risk

[E-mail address]

Organizations involved

Open in organization search

Sources

  1. [1][News]メールアカウントに不正アクセス、情報流出の可能性 - 遺伝子解析ベンチャーSecurity NEXT · 2021-03-31
  2. [2][News]メールアカウントに不正アクセス、約2,500件のメール内容が流出し迷惑メールに悪用されるScanNetSecurity · 2021-04-05 08:00