> JapanHacked_
[Investigating][Severity: Major][Intrusion]

Institute of Science Tokyo: unauthorized access to its IT infrastructure

On 7 September, Institute of Science Tokyo, formed by the merger of Tokyo Institute of Technology and Tokyo Medical and Dental University, disclosed that its IT infrastructure had been accessed by a third party and personal data may have leaked. The data includes names, addresses and emails of students, staff and others enrolled at the time of the merger; the scope is under investigation. No leak of university hospital patient data was found. It set up an incident task force on 28 August.

Disclosed

2026-09-07

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

Timeline

  1. Disclosed 2026-09-07
  2. 1 days

Attack or cause

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

Data exposed or at risk

[Name][Postal address][E-mail address][Education]

Organizations involved

Open in organization search

Sources

  1. [1][Official]情報基盤への不正アクセスによる個人情報漏えいの疑いについて(第一報)Institute of Science Tokyo · 2026-09-07
  2. [2][News]東京科学大に不正アクセス、個人情報漏えいか 東工大・医科歯科大統合当時の学生・教職員情報もITmedia NEWS · 2026-09-08