Quote:
Originally Posted by Rogueleader_92
I was talking to a coworker about how relay attacks work while watching videos of people getting their cars stolen at home in the middle of the night and ways to thwart them. Besides a blocking box/pouch (that I can't seem to find with out shit reviews where they just don't work or stop working), one is the usual kill switch inside the car but if you buy a new car will that void part or all of your warranty or cause problems with electrical components that need the battery to not lose memory?
Then he asked if it was possible to install a kill switch on the fob instead. A button or switch to disconnect the battery while not in use and could be activated in a pocket while you approach.
I don't have a keyless vehicle yet as my 3LT hasn't been picked up by chevy yet (send some prayers to whatever sky daddy you like for me), but does any electronically minded people know if this could be done?
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Check the owner's manual for the model you want to buy. My manual said that the key senses motion, and disables it's radio if it senses no motion for a certain amount of timem. I still wrap my keys in foil and keep them far away from the exterior of the house, I don't commute to work and I only use the car a few times a week so luckily this is not too annoying for me.
Quote:
Originally Posted by The Chief (tm)
Pardon some ignorance here, gang: I believe I understand the *technical* side of the process by which a relay attack works (mimicking the signal, whatever, etc.)
What I don't get is, what would a thief (thieves) need to go to pull this off?
Would they -- because doesn't it have to be two perps -- have to:
1) First somehow discover that you have a car that uses a remote key;
2) Manage to be present and able to deploy their signal-stealing equipment when you actually get in and start the car;
3) Follow you home and find out where you park; then
4) Return (both of them) and throw the bogus signal to the car while no one (i.e., the actual owner) is nearby to break up the heist?
Clue me in. I have a detached garage that's about 120 ft. from the street, and if I ever saw anyone nosing around near it, they would quite seriously need to have also prepared to have violence visited upon them.
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I think you misunderstood the relay attack because it's sadly much easier than that. Also important to note that most new cars have a remote key, especially if it's a high value car for a thief.
They don't need to steal the signal when the car is running or starting, think of the relay attack as if they are just boosting (it's not exactly that, but close enough to think of it that way) the key's signal when it's inside your house for example. This makes the car think that your key is next to it or inside it, when it's actually in your house on your table (for example).
Steps to steal your car:
1) two thieves in a stolen car drive around at night
2) they see a nice car in someone's driveway
3) they stop and get out
4) one thief walks around your house with a big antenna
5) the second thief stands next to your car with a receiver for that antenna and keeps pressing the unlock button until the car unlocks, then hops in and starts it and leaves
It's a lot of steps, but think of how fast it is. The time to steal your car is at most the time it takes a thief to walk around your house. If you're sleeping at night, you have maybe a minute to wake up from people making almost no noise, recognize the threat and prep or arm yourself and get out there.
If you have your car in a garage it's probably safe. It's still not technically difficult to steal, but why would they take the extra time and risk when they can drive a few more blocks and steal a much easier target? Unless you drive the specific car they want (or something rare).