Nihon Kotsu Cyberattack Disrupts Japan’s Largest Taxi Operator

On July 11, 2026, Nihon Kotsu, Japan’s largest taxi operator, confirmed unauthorized external access consistent with a malware infection that led to shutdowns of internal systems — including taxi dispatch, web reservations, and other internal services — causing significant operational disruption. The company isolated its internal network, engaged external cybersecurity specialists, advised customers to use alternate taxi-hailing options, and is investigating whether any personal or corporate data was exposed; no data leak has been confirmed so far.