Corolla altis 2017 already have immobilizer which is pretty effective and its not easy to hack it.
Mine is a 2016 1.8 altis cvti with immobilizer. I have parked it at tons of places where picking it up would be easy for thieves. I haven't faced any issue. Recite ya hafeezu 11 times when you leave your precious belongings and home. Allah will protect you and your belongings.
Do not mess with electrical systems of your car. There isn't any need of chor switch. If your car starts with a key then you got safest immobilizer system in your hand.
Never make a duplicate key of your car from outside.