Peach Booking Emails Delayed as Temairazu Reports Potential Exposure of Data on 4.45 Million People

October 11, 2026 42

JR Kyushu Warns Up to 1.3 Million Customer Email Addresses May Have Been Exposed

October 11, 2026 65

Japan Data Breach Concerns Widen as Millions of Records May Have Been Exposed

October 10, 2026 91

AI-Enabled Cyberattack Disrupts Japan Logistics and Public Services, Affecting 495 Organizations

October 9, 2026 57

Park24 Reports Data Breach Affecting 6.6 Million Times Car Accounts in Japan

September 28, 2026 128

Tokyo Metro Investigates Possible Leak of 59,000 Metpo Member Email Addresses

September 28, 2026 112

Japan Post Suspends Trial Online Service After Suspected Unauthorized Server Access

September 26, 2026 100

NTT Docomo Discloses Unauthorized Sharing of Data From 344,213 Mobile Lines With Amazon Japan

September 17, 2026 140

RansomHouse Claims Nichirei Cyberattack on Dark Web as Japan Focuses on Rapid Containment and Transparency

July 22, 2026 126

Japan Retires Paper Health Insurance Cards as My Number IDs Take Over, But Confusion Looms

December 2, 2025 530

Asahi Group Holdings Hit by Cyber Attack, Causing System Outage

September 29, 2025 458