TOKYO -- Toyota Motor Corp. has said the vehicle data of about 2.15 million users was left publicly available in Japan for about a decade from November 2013 to mid-April.
The incident comes as Toyota makes a push into vehicle connectivity that is seen as crucial to offering services such as autonomous driving and other artificial intelligence-backed features.
The leak, attributed to a setting error in the cloud environment, could encompass details such as vehicle locations and identification numbers of vehicle devices, but there were no reports of malicious use, the company said on Friday.
Affected customers included those who signed up for the T-Connect network service from the start of 2012 until April 17, Toyota said, apologizing for causing concern.
Also affected were users of G-Link, a similar service for owners of the luxury Lexus-branded vehicles, that provides features such as emergency support.