Critical

Malware Hits Japan’s Largest Taxi Company Nihon Kotsu, Services Temporarily Suspended

Security Affairs

July 14, 2026 at 9:05 AM

Actively Exploited

Overview

Nihon Kotsu, Japan's largest taxi company, experienced a significant disruption to its services due to a malware attack that occurred on July 11, 2026. The company reported unauthorized external access to its internal systems, leading to a temporary shutdown of dispatch and booking operations. This incident has affected thousands of customers relying on taxi services in Tokyo and surrounding areas. By taking immediate action to shut down their systems, Nihon Kotsu aimed to contain the malware and prevent further damage. The incident raises concerns about cybersecurity in the transportation sector, highlighting the vulnerabilities that can impact essential services and the need for robust security measures to protect against such attacks.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: Nihon Kotsu's internal systems, taxi dispatch and booking services
Action Required: Immediate shutdown of affected systems; further details on long-term remediation not specified.
Timeline: Disclosed on July 13, 2026

Original Article Summary

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 […]

Impact

Nihon Kotsu's internal systems, taxi dispatch and booking services

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Disclosed on July 13, 2026

Remediation

Immediate shutdown of affected systems; further details on long-term remediation not specified

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Malware.

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