This is because you as the
This is because you as the owner did not perform your due diligence. Kia/Hyundai have immobilizers in their cars, except unlike other car manufacturers it's an OPTIONAL feature, not a standard unless you buy higher trim levels.
If you go through your car's feature list I guaranteed you will find that your car does not have an immobilizer, this was common for BASE trim levels, higher trim levels came with immobilizers.
It's very important to research what you buy to prevent situations like this.