Good question, but to start with, don't get the comfort access.
The hackers have equipment to copy the code when they are near to the key. A signal blocker faraday pouch gives this protection, but then it defeats the 'comfort' purpose as you still need to take it in and out of the pouch coming towards the car.
My dealer, suggested not to get comfort access, and I agreed.
I will also take out a theft policy but after 1 year the reimbursement will only be at the market value. Then I would like to complicate the life of thieves also to avoid having to walk home...