Cyberattacks Surge in Japan: Data Leaks and Ransom Threats Prompt Government Response

10/27/2026

Japan's GMO Internet is verifying alleged customer data posted by suspected hackers following a cloud service breach.

10/27/2026

The deadline has passed, and attackers who hacked the Japanese internet conglomerate, GMO Internet Group, on October 21 have published information they claim to belong to the group and its...

10/26/2026

GMO Internet Group said customers would be compensated for losses stemming from unauthorised access following a cyberattack on its foreign exchange trading service, and all customers would receive...

10/26/2026

Japanese companies are being roiled by attacks with experts saying AI is helping automate tasks ​from scanning for software vulnerabilities to crafting phishing campaigns, making cybercrime...

10/26/2026

Japan is preparing an emergency cybersecurity package in response to increasing hacking incidents affecting various businesses. Prime Minister Sanae Takaichi announced at a cabinet meeting that...