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> What needs to be evaluated is user behavior regarding keys.

Or just smarter keys like cars have these days (which have pretty much stopped non flat-bed car theft).

I know practically nothing about the smarter keys that cars have these days. Could you please elaborate? I'm intrigued.

I don't have any inside knowledge, but presumably the keys and car exchange messages and do some crypto signing. For example, the car makes up and sends a random string, the key signs it and sends it back.

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