Portus: ransomware attack

Portus, an IT company in Kushiro, found ransomware on its internal servers early on 29 August and disclosed it on 31 August. Its third report on 14 October said leaks of information including personal data could not be fully ruled out. Kushiro City, which had contracted it to manage pupils' learning devices, said on 15 October that 31,233 learning account records of pupils and staff at its elementary and junior high schools (school names, names, account names and passwords) and admin passwords for network equipment at all 39 schools may have leaked.