Kyodo News reports:
Waseda University said Monday it took about half a year before it discovered personal data on roughly 3,300 officials and students had leaked via cyberattacks.
Tokyo-based Waseda, one of the top private universities in Japan, said the stolen data included the names, identification numbers, email addresses and other information pertaining to officials and students.
A virus sent in an email disguised as a medical expense notification infected a computer Dec. 11 and later spread to several other computers, according to Waseda.
Read more on The Mainichi.