According to the company, the incident occurred early on Saturday, July 11, 2026. After detecting unauthorized access, Nihon Kotsu immediately shut down affected systems to contain the attack and prevent additional damage. The taxi dispatch service operated via telephone, the hire car web ordering and reservation management system, and several internal systems remain temporarily offline.
Nihon Kotsu Shuts Down Systems
Nihon Kotsu, Japan's largest taxi and chauffeur operator by group revenue, generates approximately ¥155 billion (around $1 billion) annually. The company employs 18,228 people and operates a fleet of 8,558 taxis alongside more than 2,000 chauffeur vehicles, making the disruption significant for the country's Japan taxi service sector.
In a on Nihon Kotsu continues to be investigated, customers requiring taxis have been advised to use the GO taxi application, nearby taxi stands, or hail a cab directly from the street. Users of the GO app can still request a Nihon Kotsu vehicle by selecting the company within the application.
The company said it is working with external was exposed during the Nihon Kotsu cyberattack. The company stated that no information leak has been confirmed at this stage.
However, it noted that a detailed and individually notify affected parties in accordance with applicable laws.
The company said restoring systems securely remains its highest priority. It also pledged to provide updates on both the investigation and recovery process as more information becomes available. In the meantime, Nihon Kotsu urged customers to remain cautious of fraudulent emails or messages claiming to originate from the company and advised them not to open suspicious attachments or click unknown links.
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