# Japan's Largest Taxi Company Nihon Kotsu Hit by Cyberattack Services temporarily suspended due to malware infection. - **Source:** [Security Affairs](https://brifing.si/source/e6c4f5ec-3e1b-4152-a932-056243bd56eb) - **Published:** 2026-07-14 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/10ff46c2-a1b3-4e43-be26-0ef0f725ee70 ## Discovery of the Attack Japan's largest taxi operator Nihon Kotsu detected a malware infection in its systems on the morning of July 11, 2026. Authorities shut down systems as an emergency measure to contain the damage. ## Service Disruptions The shutdown of systems temporarily disabled the online car reservation system, phone-based taxi dispatch service, and some internal systems. This created a significant operational gap for customers. ## Customer Redirection With the phone dispatch service down, customers were directed to use the GO taxi app to select Nihon Kotsu or find taxis on the street. This manual workaround helped maintain operations. ## Security Investigations Nihon Kotsu is working with external security experts to determine the scope of the attack, identify its cause, and analyze logs. The internal network has been isolated to prevent further spread of malware. ## Data Leak Risk The company is investigating whether personal data was leaked. No data breach has been confirmed yet, but affected customers will be notified individually if any leak is discovered. ## Secure Recovery Process Nihon Kotsu is prioritizing the secure recovery of its systems and warning customers about suspicious emails. The company will continue to provide updates on the investigation and recovery process. ## Sources covering this story - https://securityaffairs.com/195305/cyber-crime/malware-hits-japans-largest-taxi-company-nihon-kotsu-services-temporarily-suspended.html — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._