The Nihon Kotsu cyberattack has disrupted operations at Japan's largest taxi operator after the company confirmed that its internal systems were compromised by a malware-related security incident. The cyberattack on Nihon Kotsu forced the company to shut down parts of its IT infrastructure, leaving key Japan taxi service operations, including its taxi dispatch system, unavailable. 

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 reservati...