It turned out that LINE, a major communication app, outsourced system management to a Chinese development company, and Chinese engineers were able to access the personal information of Japanese users.
The Personal Information Protection Law stipulates that the consent of the user should be obtained when it is necessary to transfer the personal information to a foreign country, but LINE has sufficient guidelines regarding personal information to transfer the information to the user in a foreign country. He did not explain it and reported it to the government's Personal Information Protection Commission.
The number of LINE users is about 86 million in Japan, and the parent company Z Holdings has set up an in-house committee to investigate and decide on a policy to improve.