A major cyberattack has stripped Japan preeminent taxi operator of its essential services. Nihon Kotsu severed its internal network connections following a severe malware infection. Consequently, patrons find themselves temporarily unable to commission vehicles via telephone or through the company digital portals.
Nihon Kotsu Profile and Reach
Nihon Kotsu stands as the nation’s foremost taxi and chauffeured limousine enterprise in terms of consolidated group revenue, which the official Nihon Kotsu company profile documents. The organization boasts a formidable workforce of 18,228 employees. Furthermore, its impressive fleet comprises 8,558 taxis and upwards of 2,000 chauffeured vehicles.
Incident Timeline and Investigation
The operational disruption commenced in the early hours of July 11, 2026. Upon detecting unauthorized system access, Nihon Kotsu isolated its internal networks. This defensive maneuver aimed to halt the propagation of the malicious software. Subsequently, the firm enlisted an external cybersecurity agency to investigate the intrusion’s origin, audit event logs, and evaluate the scope of the impact.
Alternative Dispatch Methods
The system shutdown immediately disabled the chauffeured vehicle reservation portal, the telephonic dispatch service, and various internal systems. In response, the company urged patrons to utilize the GO mobile application, locate Nihon Kotsu vehicles at designated stands, or hail vacant taxis directly on the street.
Disrupted Services and Maternity Taxi Impact
The cyberattack also disrupted the specialized maternity taxi service, which enables expectant mothers to pre-register for transit to medical facilities. Nihon Kotsu temporarily suspended these registration portals for residents across Tokyo, Tachikawa, Yokohama, and Saitama. However, the company pledges to reinstate this vital service once developers fully restore its digital infrastructure.
Data Privacy and Phishing Warnings
Currently, investigators have unearthed no evidence of a personal data breach. The comprehensive inquiry remains ongoing. If investigators verify any data exfiltration, Nihon Kotsu promises to notify affected parties and publish a formal declaration in compliance with statutory mandates. The company has declined to provide a definitive timeline for complete system restoration.
For further updates and safety recommendations, customers should monitor the official Nihon Kotsu incident announcement. They advised against opening unsolicited attachments or interacting with suspicious hyperlinks.
Support Our Threat Intelligence
If you find our technology report and cybersecurity news helpful, consider supporting our work.
Buy Me a Coffee
PayPal
