What does an "ignition killer" in my car alarm actually do ?

Question

would someone still be able to bypass it if they were trying to steal it?

Answer 1

Anyone with the knowledge could bypass the alarm with a jumper wire. Generally, they use a kill switch to the computer or ignition module.

A sophisticated car thief would simply tow the vehicle away. Many use flat bed tow trucks.

Answer 2

it stops the electrical signal the goes from the ignition to the engine. Mainly so a person can not hot wire the car. a good thief can work around it though.

Answer 3

it locks the ignition and yes. its called hot wire.

all it does is lock the ignition itself so nobody can use a s***w driver etc. but they can still hot wire it