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

Nagoya University: a teacher at its university hospital had a password stolen by phishing, and data on 333 students and 2 teachers in the mail account may have been viewed

A flood of outgoing email revealed the intrusion. Assignment notification emails and other messages may have been viewed from outside.

Disclosed

2021-03-31

Organizations involved

1

Leaked or at risk

335

335

Downtime

Unknown

What happened

  1. From this day the mail account was accessed without authorization. [1]

  2. The university noticed a large volume of email going outside and began an investigation. [1]

Impact

The teacher apparently entered an ID and password at a URL in a phishing email that claimed to come from a real unit, the IT Help Desk of the Information Technology Headquarters. The account was used to receive work messages and held 3,994 emails, which may have been viewed from outside. [1]

Of these, 857 were notifications of assignment submissions, containing names, assignment titles and student numbers of 333 students and names and staff numbers of 2 teachers. The university explained and apologized by email to the students and teachers concerned. [1]

Timeline

  1. Started 2021-03-03
  2. Detected 2021-03-05
  3. Disclosed 2021-03-31
  4. 28 days

Attack or cause

Method
[Phishing][Credential abuse]
Impact
[Data leak]
Entry point
E-mail

Data exposed or at risk

[Name][Education][Employment]

Organizations involved

Open in organization search

Sources

  1. [1][News]実在部署名乗るメールで教員がフィッシング被害 - 名大Security NEXT · 2021-03-31