Is there a danger of a "relay attack" stolen like a smart key that can be adopted on motorcycles?
What is the "relay attack" that has become a problem with four wheels in the first place?
It is now common sense for riders to register crime prevention, enrollment in theft insurance, and use various security goods to avoid stolen important cars.
Nevertheless, vehicle theft is decreasing in Japan as a whole.According to the National Police Agency's materials, the number of cars theft in 2020 was 5210 for two and four wheels, and the arrest rate was 57..7 %.By the way, the number of theft cases in 2002 was 62,673, and the arrest rate was 20..4 %, in 2010, 23,970 for arrests 35.Because it is 2 %, the stolen vehicle is decreasing at a considerable high pace.
It is considered that this has been a deterrent effect that the standard equipment of the anti -theft device, which is mainly simple among four -wheeled wheels, has progressed, and that the spread of immobilizers regardless of two wheels and four wheels.Also, the user's awareness of crime prevention may have increased.
The fact that the number of "keys with keys" is left behind and stolen, has been significantly reduced from 20,307 in 2002 to 2020, proving a growing user awareness. ing.
Nevertheless, the movement of theft groups, such as exporting stolen vehicles overseas, has been created, and new means are being born.In the four -wheeled industry, the hot topic in the four -wheeled industry is "CAN Invader", which uses dedicated equipment (control area network) to connect the vehicle control system to invade the vehicle by regular means.It seems to make a car and steal the car.
This is a technique unique to the electronic control era, and "Code Glover", which creates a duplicated key from a smart key signal, "Relay" that unlocks the smart key signal and launches the engine.A technique such as "attack" is also known.
In the four wheels, smart keys are not unusual even in mini cars, and many drivers take measures such as putting smart keys in cases where the smart key is cut off when not in use, in order to compete with such aft method.
An example of a smart key adopted model on a motorcycle
In the two wheels, the number of smart keys adopted, mainly domestic manufacturers, is increasing.
Honda was the first to mass -produce a two -wheeled smart key, which was in 2004 in Folza.Currently, it is widely used, from small displacement scooters to large sports models, such as Dio 110, Super Cub C125, PCX, ADV150, Folza, X-ADV, CBR1000RR-R Fire Blade.
In addition, Yamaha has adopted smart keys in models such as NMAX, XMAX, Tricity 300, TMAX560, and overseas manufacturers such as BMW, Ducati, and Harley Davidson are also promoting, and the two -wheeled smart key is a major trend.It is.
Is your bike smart key different from four wheels?
One theory is that there is a story that smart keys for two wheels are different from the four wheels, so there is no worry, but basically the mechanism of two -way communication by the UHF signal is the same, and the possibility of a relay attack is zero. I can not say.
Certainly, in the two -wheeled smart key, the unlocking area is set to a sense of distance that others can unlock and start the engine when the rider is nearby, such as to be less than 1 m from the vehicle side receiver.Nevertheless, theft methods such as chord glover and relay attack do not completely disable them, and some measures are needed.
How to prevent "relay attack" in two wheels
Nevertheless, two -wheel manufacturers have implemented functions that are virtually effective.
That is the power on / off function of the smart key.This feature is provided in the smart key of Honda and Yamaha.
In the four -wheeled smart key, there are only a few things that can be turned off, and there are smart keys equipped with a mode that makes radio waves weak as a relay attack countermeasure, but in fact the smart key for two wheels is early.It was a specification that can be easily turned off from the time.
Not only when you lock at home, but also on the go, if you get off your car as soon as you get off your car, you can expect to prevent the stolen at least by relay attack.
It takes a lot of time to turn on / off the smart key.Some people may find it meaningless to use a smart key, but being willing to do so will protect your car.
Report ● Shinya Yamamoto ● Honda / Yamaha / BMW / Junya Yamanuchi