Anti Thief devices.... what works

Hood pins with locks only stop casual thief’s.
Kill switch’s only stop the average thief.
Cars in locked garages and cameras only stop the undetermined.

Hide your ride well and use any and all methods available to you.

One fella here at work had his side garage door broken, alarms downdisabled. Two rear tire marks out of the garage onto a ???flat bed???

Car was gone. Bottom line.

Agree. Most devices/systems are really deterents - degree of which depends on how bad (or good) the thief wants it.

Is it parked outside ?

Here’s some ideas. How to Pick an Anti-Theft Device For Your Car | YourMechanic Advice

I’d at least do something to deter the opportunistic thief. Something like wheel lock.