Data of Nearly Half of Japan's Prefectural Police Departments May Have Been Leaked

Japan's National Police Agency reported that personal data of employees at 22 of 47 prefectural police departments may have been compromised as a result of a leak at Arcadia Inc., a company providing disaster information services. In Kyoto, Fukuoka, Shimane and Yamaguchi, the service was also used to register email addresses of local residents. Separately, Recruit Co. reported a possible leak of data from 3.7 million accounts of its Carsensor service.

Javlon TursunovFirst published on tafs uz 21 October 2026 at 08:551 min read

The key facts

Personal data of employees at 22 of 47 prefectural police departments in Japan may have been compromised due to a leak at Arcadia Inc.
In four prefectures (Kyoto, Fukuoka, Shimane, Yamaguchi), email addresses of local residents were also registered through the service
Recruit Co. reported a possible leak of data from 3.7 million accounts of its Carsensor service

Massive Possible Leak of Police Department Data

Data from nearly half of Japan's prefectural police departments may have been leaked, police officials said on Wednesday, according to the Kyodo news agency. According to the National Police Agency, personal information of employees and other workers at 22 prefectural police departments may have been compromised as a result of a recent data leak at Arcadia Inc., a company providing disaster information services. Japan is divided into 47 administrative prefectures in total.

Data of Local Residents in Four Prefectures

Officials reported that the police departments of Kyoto, Fukuoka, Shimane and Yamaguchi prefectures also registered email addresses of local residents in this service for security purposes.

Leak at Recruit Co. and Overall Statistics

In addition, the staffing agency Recruit Co. reported a possible leak of personal data affecting 3.7 million accounts of its used car information service Carsensor. According to a survey published on Monday, about 30.2% of large Japanese companies may have faced data leaks in the past, including those caused by cyberattacks or human error.