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As per reports, On May 12, 2023, Toyota Motor Corporation discovered that they had been subject to a Potential data leak due to misconfiguration of the Cloud Environment on their Japanese side.
Toyota Investigated all of its cloud environments and found that some customer information was accessible externally.
Currently, there has been another incident at Toyota Motors. The company stated that this incident was also due to insufficient data dissemination and handling rules.
It was also mentioned that the company has now implemented a system for monitoring cloud configurations.
Toyota Motors confirmed that there wasn’t any secondary use of the data exfiltrated by the threat actors.
The company is currently working on resolving this issue by enforcing better rules for data handling and educating its employees.
Data Leak Incident List
1. Domestic Service Incidents In Japan
Map data updates, vehicle device IDs, and other information relating to navigation terminals were potentially accessible externally.
However, Toyota Motors stated this information alone would not be sufficient for threat actors to affect any vehicle.
Furthermore, Customers who subscribed to the G-Book with a G-Book mX or G-Book mX Pro compatible systems were subjectively impacted.
G-Link / G-Link Lite subscribers who renewed their Maps on-demand service between February 9, 2015, and March 21, 2022, are affected due to this incident.
Toyota stated that the number of impacted customers accounts for around 260,000. The cloud environments were suspected to be externally accessible over 7 years, from February 9, 2015, to May 15, 2023.
2. Overseas Service Incidents
Cloud environment for overseas dealers, which consists of files for maintenance and investigation of the system, was also externally accessible due to a misconfiguration.
These files contain the Address, Vehicle Identification Number (VIN), Email address, Phone number, Name, and Vehicle Registration Number.
After discovering this, Toyota Motors Corporation has immediately blocked external access.
Countries that were affected due to this includes some of the Asian countries and Oceanic.
The misconfiguration and external access were discovered to be available from October 2016 to May 2023.
Vehicles that were affected due to this incident
| Vehicle | Period of time it was on sale |
| LS | October 2009 – September 2014 |
| GS | September 2009 – August 2014 |
| HS | July 2009 – July 2015 |
| IS | July 2009 – August 2013 |
| IS F | December 2007 – May 2014 |
| IS C | May 2009 – July 2014 |
| LFA | December 2010 – December 2012 |
| SC | August 2009 – July 2010 |
| CT | January 2011 – December 2013 |
| RX | January 2009 – September 2015 |
Toyota Motors claimed that they have set up a customer service center to aid affected customers.
It was also mentioned that Toyota Motors will deal with the information protection laws and each country’s regulations.
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