Theft of Toyota Vehicles Caused by Structural Vulnerabilities: What I Want to Convey as a Prius Theft Victim

1. Introduction

This article raises the issue of the rapidly increasing theft of Toyota vehicles and the "structural design vulnerabilities" behind it, from both a victim's perspective and a technical standpoint.
It is no coincidence that thefts are concentrated in specific models such as the Prius, Alphard, and Land Cruiser. As a result of the manufacturer continuing to prioritize ease of maintenance and cost over security in their designs, users' property and safety are being threatened.

2. The Rapidly Increasing Theft Method: "CAN Invader"

In recent years, the "CAN Invader" method has become the primary technique for vehicle theft.
It is an extremely dangerous method that allows the engine to be started without a legitimate key by accessing the vehicle's internal electronic control network, the "CAN (Controller Area Network)," directly from the outside.

Here is how it is done.
By physically accessing the CAN wiring located inside the front fender or behind the headlights and sending unauthorized signals, the theft is completed in just a few minutes, from unlocking the doors to starting the engine.

3. "Structural Vulnerabilities" Concentrated in Toyota Vehicles

• CAN wiring is easily accessible from the outside
  A design where the wiring can be reached just by removing a part of the bumper. Extremely disadvantageous in terms of security.

• Lack of wiring protection
  There are no covers, shielding structures, or security fasteners, making it possible to expose the wiring with a single tool.

• Centralization of security control
  Door locking, engine starting, and security deactivation are all concentrated on the same CAN network. This leads to expanded damage after intrusion.

• Lack of communication encryption and authentication
  There is no encryption or authentication for communication between ECUs, making it easy to forge unauthorized signals.

4. Differences in Safety Seen Through Comparison with Other Manufacturers

At Honda and Nissan, CAN wiring is placed in locations that are physically difficult to access, such as deep inside the cabin or the engine room. Furthermore, they are often equipped with dedicated covers or security fasteners as standard, and communications are protected by encryption and authentication.
This difference is reflected in the actual number of thefts. While reports of damage to Toyota vehicles appear frequently on social media and in the news, damage to other manufacturers' vehicles is limited.

5. Manufacturer Response and the Victim's Position

Despite the fact that the damage is widely known, Toyota has not implemented structural improvements or free countermeasures. Their response is limited to providing information on aftermarket security devices through dealerships, and they do not address their design responsibility.

Victims are confronted with arguments of self-responsibility, such as "It's your fault for not having insurance" or "You must keep paying your loan." However, if we had been informed in advance that the structure made the vehicle easy to steal, our purchasing decisions and insurance choices would certainly have been different.

6. Five Demands for Correction That I Seek

1. Official recognition of structural vulnerabilities and provision of detailed explanations

2. Free inspection and improvement for affected vehicles (wiring protection, CAN redesign, etc.)

3. Appropriate compensation for victims (loan balance waivers, economic support, etc.)

4. Mandatory implementation and disclosure of multi-layered CAN defense designs in new vehicle models

5. Fact-finding surveys and improvement recommendations by administrative agencies

7. Conclusion: This is not 'theft,' but 'design negligence'

CAN invader theft is not merely a surge in crime, but a 'man-made disaster' brought about by the manufacturer's design and lack of information disclosure.
If they truly uphold 'Customer First,' they must provide sincere explanations and compensation to victims as well.

For a society where we can own cars with peace of mind, it is necessary for the government, consumer groups, and citizens to share this issue and continue to raise their voices.
To ensure that the same damage is never repeated.

On note, I will continue to publish articles featuring observations from a consumer perspective, as well as verification and proposals regarding corporate responses.

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