Toyota warns of potential data leak affecting over 2 million Japanese vehicle users.

Toyota has revealed that the vehicle data of 2.15 million users in Japan, including those of its luxury brand Lexus, had been publicly available for a decade due to human error. The incident, which began in November 2013 and lasted until mid-April, stemmed from a cloud system being set to public instead of private. The data could include vehicle locations and identification numbers of vehicle devices, but there were no reports of malicious use. Toyota said it would introduce a system to audit cloud settings, establish a system to continuously monitor settings, and thoroughly educate employees on data handling rules.