Companies and institutions in Japan and Denmark report cyberattacks that exposed the data of millions of people

Several institutions and companies in Japan, as well as a central database in Denmark, have been targeted in cyberattacks, and the data of millions of people may have been compromised, according to information released Monday. The incidents affected universities, retailers, service providers, restaurants and financial companies.

Osaka Metropolitan University announced that hackers likely obtained the data of at least 130,000 students and faculty members after a ransomware attack took approximately 500 servers offline. The campus network and faculty portal were still unavailable, and classes were canceled.

At retailer Mr. Max, the data of 1.7 million customers may have been compromised following unauthorized access to a server used for online shopping. GMO Research & AI reported the theft of files belonging to 948,000 members, including information about rewards later exchanged for Amazon gift card codes.

Monogatari, the operator of the Yakiniku King restaurant chain, said that data on nearly 10 million customers had been stolen, including email addresses and telephone numbers. Daiwa Securities warned that the data of approximately 110,000 customers may have been affected, although it does not allow transactions to be carried out.

In Denmark, authorities announced that the central database of residents had been accessed, with the incident involving the data of approximately 8.8 million people. The cases are being investigated by authorities and cybersecurity specialists.