They use old Nokia 3310 and other devices to unlock and start cars

The classics are reinventing themselves in many ways and the old Nokia 3310 now seems to be going down that path, albeit incorrectly. This classic phone is used to unlock and start cars in a simple and fully automated way. The problem is real and it seems to be spreading.

New life for your old Nokia 3310
It is known that there are malfunctions in the protection systems of cars of various brands.  It is slowly being resolved and presents a threat to the safety of the owners of these vehicles, which can be stolen or simply unlocked and run quickly.
the most recent a report It seems to affect cars of various brands and has a peculiarity that many will certainly find funny and even very nostalgic.  Attackers use phones such as the Nokia 3310 which is known to harbor all the necessary hardware.
As can be seen in the video above, within a few seconds it is possible to use this phone, which has been changed normally, to start the Toyota RAV4.  The problem comes from these cars accepting messages from other ECUs.  As such, what hackers do is build a device that emulates an ECU (Uni Control Engine, in Portuguese ECU) secondary.

Unlock, start and steal cars of different brands
Apart from Nokia 3310, other devices have been created with Bluetooth speakers etc.  These follow the same scheme and incorporate the necessary hardware.  As far as can be known, it can be purchased online at prices ranging from 2,500 euros to 18,000 euros.  The problem affects Toyota, Lexus and Maserati vehicles.
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The security researchers who discovered the flaw explained that companies should add cryptographic security to CAN messages.  This allows messages to be blocked from sources other than the authorized ECU.  However, so far Toyota seems to ignore all repair requests, even though hacks are becoming more common.
Despite notifying the brands, they seem to have completely ignored this issue and there is still no solution to this problem.  Thus, the bug was detected and the Nokia 3310 and other devices regained their usefulness to house these devices that allow auto unlock and link.