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

Ando Hazama: employee tricked by a fake police officer into sending business card data

Between 16 and 23 August, a person claiming to be a police officer asked an employee of general contractor Ando Hazama for business card data, saying it was needed to investigate the employee's contacts. On the 17th the employee downloaded the data from the company's business card system and sent it by email. On the 23rd the employee called the police and learned it was a scam aimed at fraudulent billing. About 5,000 records with company names, departments, titles, names, addresses, phone and fax numbers and emails leaked.

Disclosed

2026-08-31

Organizations involved

1

Leaked or at risk

5K

5,000

Downtime

Unknown

Timeline

  1. Started 2026-08-17
  2. Detected 2026-08-24
  3. Disclosed 2026-08-31
  4. 14 days

Attack or cause

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

Data exposed or at risk

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

Organizations involved

Open in organization search

Sources

  1. [1][Official]個人情報(名刺情報)の外部流出に係るお詫びとご報告Ando Hazama · 2026-08-31
  2. [2][News]安藤ハザマ社員、ニセ警察にだまされ名刺情報約5000件流出ITmedia NEWS · 2026-09-01