Tokyo University of Science has lost personal information on about 8,800 students and graduates, including their names, addresses and scores, university officials said Thursday.
A 56-year-old associate professor, who leads the alumni organization of the university's pharmaceutical faculty, took an external hard disk containing the information out of the institution on the night of Feb. 24, according to officials.
While he was riding a train home, his bag containing the disk was stolen.
The university is set to take punitive measures against the associate professor. The officials said they have not confirmed if the information has been placed on any website.