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Latest coverage for Japan

Coverage of cybersecurity incidents, policy, privacy, public-service disruptions, advisories, and regional developments involving Japan.

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Japan covers cybersecurity and information-security developments connected to Japan, including incidents, policy, privacy, advisories, research, and news affecting organizations, public services, and digital systems in the area.

For practitioners, the tag provides geographic context for developments involving Japan's organizations, services, partners, and users. Individual articles provide the specific technologies, threats, sectors, and operational implications relevant to each development.

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A cyberattack hit one of Japan’s largest food companies, Nichirei, disrupting logistics and shipments. The company is gradually restoring operations. Nichirei is one of Japan’s largest food companies, best known for its frozen food business. Founded in 1942 and headquartered in Tokyo, it operates globally through dozens of subsidiaries. The food giant confirmed that the […]

Security Affairs 18 Jul 2026, 5:52 a.m. Incident · 4 stories Cyberattack Japan

Japan’s largest taxi operator Nihon Kotsu shut down systems after a malware attack, disrupting dispatch and bookings. Nihon Kotsu, Japan’s largest taxi company, disclosed on July 13, 2026 that its internal systems suffered an unauthorized external access involving malware infection in the early morning hours of Saturday, July 11. The company immediately shut down systems […]

Security Affairs 14 Jul 2026, 9:05 p.m. Incident · 4 stories Disclosure Infection Japan Malware Shut Down
Security Affairs 2 weeks, 3 days ago

Hackers Steal Data of 4.38 Million Aflac Japan Customers

Hackers stole data from 4.38 million Aflac Japan customers after accessing its systems for 10 days before the breach was detected. Aflac Japan disclosed that hackers stole the personal information of 4.38 million customers and agents after gaining access to its systems between June 15 and June 25. Attackers stole data from the company policyholder […]

Security Affairs 1 Jul 2026, 3:54 a.m. Incident · 3 stories Breach Disclosure Japan PII Theft

KDDI Corporation disclosed a breach affecting up to 14.2 million email accounts after attackers exploited a vulnerability in third-party software. KDDI Corporation disclosed a data breach that exposed up to 14.2 million email accounts across six Japanese internet service providers. KDDI Corporation is one of Japan’s largest telecommunications companies. It employs more than 60,000 people […]

Security Affairs 29 Jun 2026, 7:11 a.m. Breach Disclosure Email Exposure Japan Service Provider Vulnerability