CTR alarm?

[blueroadster]

If I recall correctly from when I did my original research, passive proximity (relay attack) is very easy for the bad guys.

But it is also very easy to block the attack by using a Faraday's pouch

However you cannot block the active RF from a button press, and it is fairly easy for the bad guys to capture the active RF (even with rolling codes, they can use so called Roll Back attack)

Which is why I rarely, if ever, use the keys on the remote, I always keep the key in the pouch (home or pocket when I run errands), and only take it out once I am near the car.

Good and fair point.

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[blueroadster]

A relay attack (where they have two devices, one near your home, one near the car) will relay the key fob passive signal to the car. They get in and drive away in about 30 second. no need to break windows, or damage the lock. the car "senses" the relay as if it was the real key fob.

Defense is to keep key fob in a good triple layer Faraday's pouch, and test the pouch every so often (key fob inside, near the door, attempt to unlock)

Another vector is to force open the door, or smash the window, then attach a scan tool to an unprotected OBD port and program a blank key fob. the car will recognize the newly programmed key fob as a "real" key fob.

Defense is to physically lock the OBD port (which will probably only slow them down),

A variation on the above is to gain access to the CAN bus through other means, such as lights etc, and program a blank key fob.

No direct defense.

Indirect defenses are DIY clutch pedal interlock and starter (STRQ start-signal interrupt) hidden switches, commercial kill switch, Ravelco anti-theft system, IGLA plus their optional OBD port block.

also physical locks such as steering wheel lock, brake pedal lock, etc.

Next up is flatbed or tow truck.

No direct defense, and might not be able to track. GPS/Cellular signals will probably be jammed. Multiple Air Tags might work to track. A tilt sensor with notification sent before a signal is jammed (though highly unlikely for an organized crime crew) might at least alert you.

forgot to mention, Compustar alarm (or similar) with tilt and glass break sensors and high decibel horn(s), though most people might ignore the alarm, but if parked in your driveway, might at least alert you.

I do not recommend confronting a professional crew, even if you are pew pew proficient.

Best defense is not to park outside at night, if possible. Or install bollards on your driveway as at least one person did.

Again...Very good points worth considering. Regarding picking the driver's side door handle, one could consider modifying the lock cylinder so it is either physically disconnected or will not allow for insertion to rotate and unlock the door.