Nagoya University: the mail accounts of two teachers were accessed without authorization and abused to send spam in bulk

1. 2020-07-23

   Unauthorized access to a teacher's account at the Graduate School of Education and Human Development began. It lasted until September 23. [1]

2. 2021-03-02

   Unauthorized access from several overseas IP addresses to a teacher's account at the Graduate School of Science began. It lasted until March 18. [1]

3. 2021-03-18

   It detected a large volume of mail sent from the Graduate School of Science account, and the problem came to light. [1] [2]

4. 2021-05-27

   Unauthorized access to the teacher's account at the Graduate School of Education and Human Development occurred again, lasting until May 28. [1]

5. 2021-05-28

   It confirmed that a large volume of spam was being sent from the account. [1]

6. 2021-10-29

   It announced the case. [2]

The Graduate School of Science account held one password-protected file, saved as a mail attachment, with the names, student numbers and grades of 36 students in a lecture. Mails containing personal data may have been viewed. Both accounts were abused to send spam in bulk. [1] [2]